Home / 627,006.39-865,156.46-372,420.15

Finding the Fourth Proportional to 627,006.39, 865,156.46 and 372,420.15

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Solution

The fourth proportional to 627,006.39, 865,156.46 and 372,420.15 is: 513,873.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,006.39 : 865,156.46 = 372,420.15 : x
  2. Step 2: Convert to fraction form
    627,006.39/865,156.46 = 372,420.15/x
  3. Step 3: Cross multiply
    627,006.39x = 865,156.46 × 372,420.15
  4. Step 4: Simplify right side
    627,006.39x = 322,201,696,744.57
  5. Step 5: Solve for x
    x = 322,201,696,744.57/627,006.39
  6. Step 6: Final answer
    x = 513,873.07

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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.