Home / 753,182.18-1,039,387.39-409,015.10

Finding the Fourth Proportional to 753,182.18, 1,039,387.39 and 409,015.10

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Solution

The fourth proportional to 753,182.18, 1,039,387.39 and 409,015.10 is: 564,438.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,182.18 : 1,039,387.39 = 409,015.10 : x
  2. Step 2: Convert to fraction form
    753,182.18/1,039,387.39 = 409,015.10/x
  3. Step 3: Cross multiply
    753,182.18x = 1,039,387.39 × 409,015.10
  4. Step 4: Simplify right side
    753,182.18x = 425,125,137,259.59
  5. Step 5: Solve for x
    x = 425,125,137,259.59/753,182.18
  6. Step 6: Final answer
    x = 564,438.66

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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.