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Finding the Fourth Proportional to 657,466.10, 986,199.15 and 539,270.90

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Solution

The fourth proportional to 657,466.10, 986,199.15 and 539,270.90 is: 808,906.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,466.10 : 986,199.15 = 539,270.90 : x
  2. Step 2: Convert to fraction form
    657,466.10/986,199.15 = 539,270.90/x
  3. Step 3: Cross multiply
    657,466.10x = 986,199.15 × 539,270.90
  4. Step 4: Simplify right side
    657,466.10x = 531,828,503,199.74
  5. Step 5: Solve for x
    x = 531,828,503,199.74/657,466.10
  6. Step 6: Final answer
    x = 808,906.35

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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.