Home / 747,829.60-1,121,744.40-274,357.60

Finding the Fourth Proportional to 747,829.60, 1,121,744.40 and 274,357.60

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Solution

The fourth proportional to 747,829.60, 1,121,744.40 and 274,357.60 is: 411,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,829.60 : 1,121,744.40 = 274,357.60 : x
  2. Step 2: Convert to fraction form
    747,829.60/1,121,744.40 = 274,357.60/x
  3. Step 3: Cross multiply
    747,829.60x = 1,121,744.40 × 274,357.60
  4. Step 4: Simplify right side
    747,829.60x = 307,759,101,397.44
  5. Step 5: Solve for x
    x = 307,759,101,397.44/747,829.60
  6. Step 6: Final answer
    x = 411,536.40

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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.