Home / 913,900.28-1,370,901.44-282,764.88

Finding the Fourth Proportional to 913,900.28, 1,370,901.44 and 282,764.88

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Solution

The fourth proportional to 913,900.28, 1,370,901.44 and 282,764.88 is: 424,163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,900.28 : 1,370,901.44 = 282,764.88 : x
  2. Step 2: Convert to fraction form
    913,900.28/1,370,901.44 = 282,764.88/x
  3. Step 3: Cross multiply
    913,900.28x = 1,370,901.44 × 282,764.88
  4. Step 4: Simplify right side
    913,900.28x = 387,642,781,173.43
  5. Step 5: Solve for x
    x = 387,642,781,173.43/913,900.28
  6. Step 6: Final answer
    x = 424,163.11

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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.