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Finding the Fourth Proportional to 488,543.80, 732,815.70 and 440,332.60

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Solution

The fourth proportional to 488,543.80, 732,815.70 and 440,332.60 is: 660,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,543.80 : 732,815.70 = 440,332.60 : x
  2. Step 2: Convert to fraction form
    488,543.80/732,815.70 = 440,332.60/x
  3. Step 3: Cross multiply
    488,543.80x = 732,815.70 × 440,332.60
  4. Step 4: Simplify right side
    488,543.80x = 322,682,642,501.82
  5. Step 5: Solve for x
    x = 322,682,642,501.82/488,543.80
  6. Step 6: Final answer
    x = 660,498.90

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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.