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Finding the Fourth Proportional to 447,769.65, 618,332.58 and 284,478.90

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Solution

The fourth proportional to 447,769.65, 618,332.58 and 284,478.90 is: 392,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,769.65 : 618,332.58 = 284,478.90 : x
  2. Step 2: Convert to fraction form
    447,769.65/618,332.58 = 284,478.90/x
  3. Step 3: Cross multiply
    447,769.65x = 618,332.58 × 284,478.90
  4. Step 4: Simplify right side
    447,769.65x = 175,902,572,192.56
  5. Step 5: Solve for x
    x = 175,902,572,192.56/447,769.65
  6. Step 6: Final answer
    x = 392,841.66

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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.