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Finding the Fourth Proportional to 607,637.40, 910,143.90 and 502,661.40

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Solution

The fourth proportional to 607,637.40, 910,143.90 and 502,661.40 is: 752,906.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,637.40 : 910,143.90 = 502,661.40 : x
  2. Step 2: Convert to fraction form
    607,637.40/910,143.90 = 502,661.40/x
  3. Step 3: Cross multiply
    607,637.40x = 910,143.90 × 502,661.40
  4. Step 4: Simplify right side
    607,637.40x = 457,494,206,975.46
  5. Step 5: Solve for x
    x = 457,494,206,975.46/607,637.40
  6. Step 6: Final answer
    x = 752,906.60

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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.