Home / 738,649.06-1,107,651.78-392,356.74

Finding the Fourth Proportional to 738,649.06, 1,107,651.78 and 392,356.74

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Solution

The fourth proportional to 738,649.06, 1,107,651.78 and 392,356.74 is: 588,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,649.06 : 1,107,651.78 = 392,356.74 : x
  2. Step 2: Convert to fraction form
    738,649.06/1,107,651.78 = 392,356.74/x
  3. Step 3: Cross multiply
    738,649.06x = 1,107,651.78 × 392,356.74
  4. Step 4: Simplify right side
    738,649.06x = 434,594,645,609.69
  5. Step 5: Solve for x
    x = 434,594,645,609.69/738,649.06
  6. Step 6: Final answer
    x = 588,364.18

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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.