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Finding the Fourth Proportional to 554,937.80, 832,406.70 and 289,217.30

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Solution

The fourth proportional to 554,937.80, 832,406.70 and 289,217.30 is: 433,825.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,937.80 : 832,406.70 = 289,217.30 : x
  2. Step 2: Convert to fraction form
    554,937.80/832,406.70 = 289,217.30/x
  3. Step 3: Cross multiply
    554,937.80x = 832,406.70 × 289,217.30
  4. Step 4: Simplify right side
    554,937.80x = 240,746,418,275.91
  5. Step 5: Solve for x
    x = 240,746,418,275.91/554,937.80
  6. Step 6: Final answer
    x = 433,825.95

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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.