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Finding the Fourth Proportional to 537,710.70, 807,003.45 and 520,214.70

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Solution

The fourth proportional to 537,710.70, 807,003.45 and 520,214.70 is: 780,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,710.70 : 807,003.45 = 520,214.70 : x
  2. Step 2: Convert to fraction form
    537,710.70/807,003.45 = 520,214.70/x
  3. Step 3: Cross multiply
    537,710.70x = 807,003.45 × 520,214.70
  4. Step 4: Simplify right side
    537,710.70x = 419,815,057,640.72
  5. Step 5: Solve for x
    x = 419,815,057,640.72/537,710.70
  6. Step 6: Final answer
    x = 780,745.22

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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.