Home / 385,724.60-577,809.30-267,529.40

Finding the Fourth Proportional to 385,724.60, 577,809.30 and 267,529.40

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Solution

The fourth proportional to 385,724.60, 577,809.30 and 267,529.40 is: 400,754.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,724.60 : 577,809.30 = 267,529.40 : x
  2. Step 2: Convert to fraction form
    385,724.60/577,809.30 = 267,529.40/x
  3. Step 3: Cross multiply
    385,724.60x = 577,809.30 × 267,529.40
  4. Step 4: Simplify right side
    385,724.60x = 154,580,975,343.42
  5. Step 5: Solve for x
    x = 154,580,975,343.42/385,724.60
  6. Step 6: Final answer
    x = 400,754.78

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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.