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Finding the Fourth Proportional to 515,098.40, 772,647.60 and 488,854.40

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Solution

The fourth proportional to 515,098.40, 772,647.60 and 488,854.40 is: 733,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,098.40 : 772,647.60 = 488,854.40 : x
  2. Step 2: Convert to fraction form
    515,098.40/772,647.60 = 488,854.40/x
  3. Step 3: Cross multiply
    515,098.40x = 772,647.60 × 488,854.40
  4. Step 4: Simplify right side
    515,098.40x = 377,712,178,909.44
  5. Step 5: Solve for x
    x = 377,712,178,909.44/515,098.40
  6. Step 6: Final answer
    x = 733,281.60

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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.