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Finding the Fourth Proportional to 537,632.70, 806,886.45 and 520,136.70

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Solution

The fourth proportional to 537,632.70, 806,886.45 and 520,136.70 is: 780,628.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,632.70 : 806,886.45 = 520,136.70 : x
  2. Step 2: Convert to fraction form
    537,632.70/806,886.45 = 520,136.70/x
  3. Step 3: Cross multiply
    537,632.70x = 806,886.45 × 520,136.70
  4. Step 4: Simplify right side
    537,632.70x = 419,691,255,377.72
  5. Step 5: Solve for x
    x = 419,691,255,377.72/537,632.70
  6. Step 6: Final answer
    x = 780,628.22

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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.