Home / 961,489.60-1,442,234.40-489,097.60

Finding the Fourth Proportional to 961,489.60, 1,442,234.40 and 489,097.60

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Solution

The fourth proportional to 961,489.60, 1,442,234.40 and 489,097.60 is: 733,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,489.60 : 1,442,234.40 = 489,097.60 : x
  2. Step 2: Convert to fraction form
    961,489.60/1,442,234.40 = 489,097.60/x
  3. Step 3: Cross multiply
    961,489.60x = 1,442,234.40 × 489,097.60
  4. Step 4: Simplify right side
    961,489.60x = 705,393,383,677.44
  5. Step 5: Solve for x
    x = 705,393,383,677.44/961,489.60
  6. Step 6: Final answer
    x = 733,646.40

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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.