Home / 749,078.07-1,123,728.98-275,727.43

Finding the Fourth Proportional to 749,078.07, 1,123,728.98 and 275,727.43

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Solution

The fourth proportional to 749,078.07, 1,123,728.98 and 275,727.43 is: 413,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,078.07 : 1,123,728.98 = 275,727.43 : x
  2. Step 2: Convert to fraction form
    749,078.07/1,123,728.98 = 275,727.43/x
  3. Step 3: Cross multiply
    749,078.07x = 1,123,728.98 × 275,727.43
  4. Step 4: Simplify right side
    749,078.07x = 309,842,903,671.92
  5. Step 5: Solve for x
    x = 309,842,903,671.92/749,078.07
  6. Step 6: Final answer
    x = 413,632.32

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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.