Home / 753,178.68-1,039,382.56-409,011.60

Finding the Fourth Proportional to 753,178.68, 1,039,382.56 and 409,011.60

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Solution

The fourth proportional to 753,178.68, 1,039,382.56 and 409,011.60 is: 564,433.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,178.68 : 1,039,382.56 = 409,011.60 : x
  2. Step 2: Convert to fraction form
    753,178.68/1,039,382.56 = 409,011.60/x
  3. Step 3: Cross multiply
    753,178.68x = 1,039,382.56 × 409,011.60
  4. Step 4: Simplify right side
    753,178.68x = 425,119,523,877.70
  5. Step 5: Solve for x
    x = 425,119,523,877.70/753,178.68
  6. Step 6: Final answer
    x = 564,433.83

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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.