Home / 753,390.06-1,039,689.47-409,232.71

Finding the Fourth Proportional to 753,390.06, 1,039,689.47 and 409,232.71

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Solution

The fourth proportional to 753,390.06, 1,039,689.47 and 409,232.71 is: 564,747.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,390.06 : 1,039,689.47 = 409,232.71 : x
  2. Step 2: Convert to fraction form
    753,390.06/1,039,689.47 = 409,232.71/x
  3. Step 3: Cross multiply
    753,390.06x = 1,039,689.47 × 409,232.71
  4. Step 4: Simplify right side
    753,390.06x = 425,474,935,841.00
  5. Step 5: Solve for x
    x = 425,474,935,841.00/753,390.06
  6. Step 6: Final answer
    x = 564,747.21

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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.