Home / 738,983.61-1,107,470.75-312,165.95

Finding the Fourth Proportional to 738,983.61, 1,107,470.75 and 312,165.95

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Solution

The fourth proportional to 738,983.61, 1,107,470.75 and 312,165.95 is: 467,824.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,983.61 : 1,107,470.75 = 312,165.95 : x
  2. Step 2: Convert to fraction form
    738,983.61/1,107,470.75 = 312,165.95/x
  3. Step 3: Cross multiply
    738,983.61x = 1,107,470.75 × 312,165.95
  4. Step 4: Simplify right side
    738,983.61x = 345,714,651,672.78
  5. Step 5: Solve for x
    x = 345,714,651,672.78/738,983.61
  6. Step 6: Final answer
    x = 467,824.52

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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.