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Finding the Fourth Proportional to 657,970.96, 908,041.88 and 371,386.48

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Solution

The fourth proportional to 657,970.96, 908,041.88 and 371,386.48 is: 512,537.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,970.96 : 908,041.88 = 371,386.48 : x
  2. Step 2: Convert to fraction form
    657,970.96/908,041.88 = 371,386.48/x
  3. Step 3: Cross multiply
    657,970.96x = 908,041.88 × 371,386.48
  4. Step 4: Simplify right side
    657,970.96x = 337,234,477,505.78
  5. Step 5: Solve for x
    x = 337,234,477,505.78/657,970.96
  6. Step 6: Final answer
    x = 512,537.02

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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.