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Finding the Fourth Proportional to 484,691.50, 668,889.66 and 303,345.46

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Solution

The fourth proportional to 484,691.50, 668,889.66 and 303,345.46 is: 418,626.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,691.50 : 668,889.66 = 303,345.46 : x
  2. Step 2: Convert to fraction form
    484,691.50/668,889.66 = 303,345.46/x
  3. Step 3: Cross multiply
    484,691.50x = 668,889.66 × 303,345.46
  4. Step 4: Simplify right side
    484,691.50x = 202,904,641,601.94
  5. Step 5: Solve for x
    x = 202,904,641,601.94/484,691.50
  6. Step 6: Final answer
    x = 418,626.37

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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.