Home / 642,260.20-962,468.70-472,455.40

Finding the Fourth Proportional to 642,260.20, 962,468.70 and 472,455.40

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Solution

The fourth proportional to 642,260.20, 962,468.70 and 472,455.40 is: 708,005.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,260.20 : 962,468.70 = 472,455.40 : x
  2. Step 2: Convert to fraction form
    642,260.20/962,468.70 = 472,455.40/x
  3. Step 3: Cross multiply
    642,260.20x = 962,468.70 × 472,455.40
  4. Step 4: Simplify right side
    642,260.20x = 454,723,534,645.98
  5. Step 5: Solve for x
    x = 454,723,534,645.98/642,260.20
  6. Step 6: Final answer
    x = 708,005.16

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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.