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Finding the Fourth Proportional to 488,337.80, 732,506.70 and 440,126.60

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Solution

The fourth proportional to 488,337.80, 732,506.70 and 440,126.60 is: 660,189.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,337.80 : 732,506.70 = 440,126.60 : x
  2. Step 2: Convert to fraction form
    488,337.80/732,506.70 = 440,126.60/x
  3. Step 3: Cross multiply
    488,337.80x = 732,506.70 × 440,126.60
  4. Step 4: Simplify right side
    488,337.80x = 322,395,683,348.22
  5. Step 5: Solve for x
    x = 322,395,683,348.22/488,337.80
  6. Step 6: Final answer
    x = 660,189.90

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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.