Home / 657,385.20-986,466.60-433,393.20

Finding the Fourth Proportional to 657,385.20, 986,466.60 and 433,393.20

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Solution

The fourth proportional to 657,385.20, 986,466.60 and 433,393.20 is: 650,346.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,385.20 : 986,466.60 = 433,393.20 : x
  2. Step 2: Convert to fraction form
    657,385.20/986,466.60 = 433,393.20/x
  3. Step 3: Cross multiply
    657,385.20x = 986,466.60 × 433,393.20
  4. Step 4: Simplify right side
    657,385.20x = 427,527,916,467.12
  5. Step 5: Solve for x
    x = 427,527,916,467.12/657,385.20
  6. Step 6: Final answer
    x = 650,346.12

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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.