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Finding the Fourth Proportional to 626,918.40, 938,822.40 and 502,502.40

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Solution

The fourth proportional to 626,918.40, 938,822.40 and 502,502.40 is: 752,507.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,918.40 : 938,822.40 = 502,502.40 : x
  2. Step 2: Convert to fraction form
    626,918.40/938,822.40 = 502,502.40/x
  3. Step 3: Cross multiply
    626,918.40x = 938,822.40 × 502,502.40
  4. Step 4: Simplify right side
    626,918.40x = 471,760,509,173.76
  5. Step 5: Solve for x
    x = 471,760,509,173.76/626,918.40
  6. Step 6: Final answer
    x = 752,507.04

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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.