Home / 754,049.76-1,040,747.04-478,228.64

Finding the Fourth Proportional to 754,049.76, 1,040,747.04 and 478,228.64

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Solution

The fourth proportional to 754,049.76, 1,040,747.04 and 478,228.64 is: 660,055.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,049.76 : 1,040,747.04 = 478,228.64 : x
  2. Step 2: Convert to fraction form
    754,049.76/1,040,747.04 = 478,228.64/x
  3. Step 3: Cross multiply
    754,049.76x = 1,040,747.04 × 478,228.64
  4. Step 4: Simplify right side
    754,049.76x = 497,715,041,523.23
  5. Step 5: Solve for x
    x = 497,715,041,523.23/754,049.76
  6. Step 6: Final answer
    x = 660,055.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.