Home / 739,064.40-1,108,596.60-418,887.60

Finding the Fourth Proportional to 739,064.40, 1,108,596.60 and 418,887.60

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Solution

The fourth proportional to 739,064.40, 1,108,596.60 and 418,887.60 is: 628,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,064.40 : 1,108,596.60 = 418,887.60 : x
  2. Step 2: Convert to fraction form
    739,064.40/1,108,596.60 = 418,887.60/x
  3. Step 3: Cross multiply
    739,064.40x = 1,108,596.60 × 418,887.60
  4. Step 4: Simplify right side
    739,064.40x = 464,377,369,142.16
  5. Step 5: Solve for x
    x = 464,377,369,142.16/739,064.40
  6. Step 6: Final answer
    x = 628,331.40

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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.