Home / 747,441.05-1,121,309.13-274,130.51

Finding the Fourth Proportional to 747,441.05, 1,121,309.13 and 274,130.51

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Solution

The fourth proportional to 747,441.05, 1,121,309.13 and 274,130.51 is: 411,249.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,441.05 : 1,121,309.13 = 274,130.51 : x
  2. Step 2: Convert to fraction form
    747,441.05/1,121,309.13 = 274,130.51/x
  3. Step 3: Cross multiply
    747,441.05x = 1,121,309.13 × 274,130.51
  4. Step 4: Simplify right side
    747,441.05x = 307,385,046,477.83
  5. Step 5: Solve for x
    x = 307,385,046,477.83/747,441.05
  6. Step 6: Final answer
    x = 411,249.88

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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.