Home / 985,969.20-1,479,002.40-513,577.20

Finding the Fourth Proportional to 985,969.20, 1,479,002.40 and 513,577.20

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Solution

The fourth proportional to 985,969.20, 1,479,002.40 and 513,577.20 is: 770,391.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,969.20 : 1,479,002.40 = 513,577.20 : x
  2. Step 2: Convert to fraction form
    985,969.20/1,479,002.40 = 513,577.20/x
  3. Step 3: Cross multiply
    985,969.20x = 1,479,002.40 × 513,577.20
  4. Step 4: Simplify right side
    985,969.20x = 759,581,911,385.28
  5. Step 5: Solve for x
    x = 759,581,911,385.28/985,969.20
  6. Step 6: Final answer
    x = 770,391.12

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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.