Home / 385,723.60-577,807.80-267,528.40

Finding the Fourth Proportional to 385,723.60, 577,807.80 and 267,528.40

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Solution

The fourth proportional to 385,723.60, 577,807.80 and 267,528.40 is: 400,753.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,723.60 : 577,807.80 = 267,528.40 : x
  2. Step 2: Convert to fraction form
    385,723.60/577,807.80 = 267,528.40/x
  3. Step 3: Cross multiply
    385,723.60x = 577,807.80 × 267,528.40
  4. Step 4: Simplify right side
    385,723.60x = 154,579,996,241.52
  5. Step 5: Solve for x
    x = 154,579,996,241.52/385,723.60
  6. Step 6: Final answer
    x = 400,753.28

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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.