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Finding the Fourth Proportional to 657,864.96, 907,802.96 and 371,413.32

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Solution

The fourth proportional to 657,864.96, 907,802.96 and 371,413.32 is: 512,521.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,864.96 : 907,802.96 = 371,413.32 : x
  2. Step 2: Convert to fraction form
    657,864.96/907,802.96 = 371,413.32/x
  3. Step 3: Cross multiply
    657,864.96x = 907,802.96 × 371,413.32
  4. Step 4: Simplify right side
    657,864.96x = 337,170,111,279.43
  5. Step 5: Solve for x
    x = 337,170,111,279.43/657,864.96
  6. Step 6: Final answer
    x = 512,521.77

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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.