Home / 739,241.42-1,108,862.13-290,173.77

Finding the Fourth Proportional to 739,241.42, 1,108,862.13 and 290,173.77

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Solution

The fourth proportional to 739,241.42, 1,108,862.13 and 290,173.77 is: 435,260.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,241.42 : 1,108,862.13 = 290,173.77 : x
  2. Step 2: Convert to fraction form
    739,241.42/1,108,862.13 = 290,173.77/x
  3. Step 3: Cross multiply
    739,241.42x = 1,108,862.13 × 290,173.77
  4. Step 4: Simplify right side
    739,241.42x = 321,762,704,672.33
  5. Step 5: Solve for x
    x = 321,762,704,672.33/739,241.42
  6. Step 6: Final answer
    x = 435,260.66

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.