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Finding the Fourth Proportional to 588,001.80, 882,002.70 and 428,593.80

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Solution

The fourth proportional to 588,001.80, 882,002.70 and 428,593.80 is: 642,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,001.80 : 882,002.70 = 428,593.80 : x
  2. Step 2: Convert to fraction form
    588,001.80/882,002.70 = 428,593.80/x
  3. Step 3: Cross multiply
    588,001.80x = 882,002.70 × 428,593.80
  4. Step 4: Simplify right side
    588,001.80x = 378,020,888,803.26
  5. Step 5: Solve for x
    x = 378,020,888,803.26/588,001.80
  6. Step 6: Final answer
    x = 642,890.70

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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.