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Finding the Fourth Proportional to 530,432.40, 795,648.60 and 425,456.40

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Solution

The fourth proportional to 530,432.40, 795,648.60 and 425,456.40 is: 638,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,432.40 : 795,648.60 = 425,456.40 : x
  2. Step 2: Convert to fraction form
    530,432.40/795,648.60 = 425,456.40/x
  3. Step 3: Cross multiply
    530,432.40x = 795,648.60 × 425,456.40
  4. Step 4: Simplify right side
    530,432.40x = 338,513,789,021.04
  5. Step 5: Solve for x
    x = 338,513,789,021.04/530,432.40
  6. Step 6: Final answer
    x = 638,184.60

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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.