Home / 747,080.92-1,120,950.78-392,009.32

Finding the Fourth Proportional to 747,080.92, 1,120,950.78 and 392,009.32

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Solution

The fourth proportional to 747,080.92, 1,120,950.78 and 392,009.32 is: 588,186.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,080.92 : 1,120,950.78 = 392,009.32 : x
  2. Step 2: Convert to fraction form
    747,080.92/1,120,950.78 = 392,009.32/x
  3. Step 3: Cross multiply
    747,080.92x = 1,120,950.78 × 392,009.32
  4. Step 4: Simplify right side
    747,080.92x = 439,423,153,021.27
  5. Step 5: Solve for x
    x = 439,423,153,021.27/747,080.92
  6. Step 6: Final answer
    x = 588,186.82

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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.