Home / 739,130.64-1,019,633.56-477,395.96

Finding the Fourth Proportional to 739,130.64, 1,019,633.56 and 477,395.96

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Solution

The fourth proportional to 739,130.64, 1,019,633.56 and 477,395.96 is: 658,569.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,130.64 : 1,019,633.56 = 477,395.96 : x
  2. Step 2: Convert to fraction form
    739,130.64/1,019,633.56 = 477,395.96/x
  3. Step 3: Cross multiply
    739,130.64x = 1,019,633.56 × 477,395.96
  4. Step 4: Simplify right side
    739,130.64x = 486,768,942,224.42
  5. Step 5: Solve for x
    x = 486,768,942,224.42/739,130.64
  6. Step 6: Final answer
    x = 658,569.56

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.