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Finding the Fourth Proportional to 557,624.40, 782,248.80 and 557,624.40

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Solution

The fourth proportional to 557,624.40, 782,248.80 and 557,624.40 is: 782,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,624.40 : 782,248.80 = 557,624.40 : x
  2. Step 2: Convert to fraction form
    557,624.40/782,248.80 = 557,624.40/x
  3. Step 3: Cross multiply
    557,624.40x = 782,248.80 × 557,624.40
  4. Step 4: Simplify right side
    557,624.40x = 436,201,017,750.72
  5. Step 5: Solve for x
    x = 436,201,017,750.72/557,624.40
  6. Step 6: Final answer
    x = 782,248.80

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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.