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Finding the Fourth Proportional to 537,315.30, 807,722.55 and 380,628.90

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Solution

The fourth proportional to 537,315.30, 807,722.55 and 380,628.90 is: 572,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,315.30 : 807,722.55 = 380,628.90 : x
  2. Step 2: Convert to fraction form
    537,315.30/807,722.55 = 380,628.90/x
  3. Step 3: Cross multiply
    537,315.30x = 807,722.55 × 380,628.90
  4. Step 4: Simplify right side
    537,315.30x = 307,442,545,711.70
  5. Step 5: Solve for x
    x = 307,442,545,711.70/537,315.30
  6. Step 6: Final answer
    x = 572,182.75

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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.