Home / 747,848.60-1,121,772.90-274,376.60

Finding the Fourth Proportional to 747,848.60, 1,121,772.90 and 274,376.60

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Solution

The fourth proportional to 747,848.60, 1,121,772.90 and 274,376.60 is: 411,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,848.60 : 1,121,772.90 = 274,376.60 : x
  2. Step 2: Convert to fraction form
    747,848.60/1,121,772.90 = 274,376.60/x
  3. Step 3: Cross multiply
    747,848.60x = 1,121,772.90 × 274,376.60
  4. Step 4: Simplify right side
    747,848.60x = 307,788,234,274.14
  5. Step 5: Solve for x
    x = 307,788,234,274.14/747,848.60
  6. Step 6: Final answer
    x = 411,564.90

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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.