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Finding the Fourth Proportional to 659,105.80, 988,658.70 and 596,120.20

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Solution

The fourth proportional to 659,105.80, 988,658.70 and 596,120.20 is: 894,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,105.80 : 988,658.70 = 596,120.20 : x
  2. Step 2: Convert to fraction form
    659,105.80/988,658.70 = 596,120.20/x
  3. Step 3: Cross multiply
    659,105.80x = 988,658.70 × 596,120.20
  4. Step 4: Simplify right side
    659,105.80x = 589,359,421,975.74
  5. Step 5: Solve for x
    x = 589,359,421,975.74/659,105.80
  6. Step 6: Final answer
    x = 894,180.30

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Double scale
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Similar ratio
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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.