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Finding the Fourth Proportional to 522,687.97, 720,545.89 and 369,455.82

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Solution

The fourth proportional to 522,687.97, 720,545.89 and 369,455.82 is: 509,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,687.97 : 720,545.89 = 369,455.82 : x
  2. Step 2: Convert to fraction form
    522,687.97/720,545.89 = 369,455.82/x
  3. Step 3: Cross multiply
    522,687.97x = 720,545.89 × 369,455.82
  4. Step 4: Simplify right side
    522,687.97x = 266,209,872,637.58
  5. Step 5: Solve for x
    x = 266,209,872,637.58/522,687.97
  6. Step 6: Final answer
    x = 509,309.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.