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Finding the Fourth Proportional to 661,330.68, 992,123.70 and 282,245.88

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Solution

The fourth proportional to 661,330.68, 992,123.70 and 282,245.88 is: 423,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,330.68 : 992,123.70 = 282,245.88 : x
  2. Step 2: Convert to fraction form
    661,330.68/992,123.70 = 282,245.88/x
  3. Step 3: Cross multiply
    661,330.68x = 992,123.70 × 282,245.88
  4. Step 4: Simplify right side
    661,330.68x = 280,022,826,775.36
  5. Step 5: Solve for x
    x = 280,022,826,775.36/661,330.68
  6. Step 6: Final answer
    x = 423,423.31

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1.5x scale

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.