Home / 747,440.81-1,121,308.76-274,130.27

Finding the Fourth Proportional to 747,440.81, 1,121,308.76 and 274,130.27

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Solution

The fourth proportional to 747,440.81, 1,121,308.76 and 274,130.27 is: 411,249.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,440.81 : 1,121,308.76 = 274,130.27 : x
  2. Step 2: Convert to fraction form
    747,440.81/1,121,308.76 = 274,130.27/x
  3. Step 3: Cross multiply
    747,440.81x = 1,121,308.76 × 274,130.27
  4. Step 4: Simplify right side
    747,440.81x = 307,384,666,154.97
  5. Step 5: Solve for x
    x = 307,384,666,154.97/747,440.81
  6. Step 6: Final answer
    x = 411,249.51

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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.