Home / 709,489.20-1,064,233.80-618,250.80

Finding the Fourth Proportional to 709,489.20, 1,064,233.80 and 618,250.80

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Solution

The fourth proportional to 709,489.20, 1,064,233.80 and 618,250.80 is: 927,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,489.20 : 1,064,233.80 = 618,250.80 : x
  2. Step 2: Convert to fraction form
    709,489.20/1,064,233.80 = 618,250.80/x
  3. Step 3: Cross multiply
    709,489.20x = 1,064,233.80 × 618,250.80
  4. Step 4: Simplify right side
    709,489.20x = 657,963,398,237.04
  5. Step 5: Solve for x
    x = 657,963,398,237.04/709,489.20
  6. Step 6: Final answer
    x = 927,376.20

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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.