Home / 747,349.60-1,121,024.40-411,426.40

Finding the Fourth Proportional to 747,349.60, 1,121,024.40 and 411,426.40

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Solution

The fourth proportional to 747,349.60, 1,121,024.40 and 411,426.40 is: 617,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,349.60 : 1,121,024.40 = 411,426.40 : x
  2. Step 2: Convert to fraction form
    747,349.60/1,121,024.40 = 411,426.40/x
  3. Step 3: Cross multiply
    747,349.60x = 1,121,024.40 × 411,426.40
  4. Step 4: Simplify right side
    747,349.60x = 461,219,033,204.16
  5. Step 5: Solve for x
    x = 461,219,033,204.16/747,349.60
  6. Step 6: Final answer
    x = 617,139.60

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Half scale
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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.