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Finding the Fourth Proportional to 385,730.60, 577,818.30 and 267,535.40

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Solution

The fourth proportional to 385,730.60, 577,818.30 and 267,535.40 is: 400,763.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,730.60 : 577,818.30 = 267,535.40 : x
  2. Step 2: Convert to fraction form
    385,730.60/577,818.30 = 267,535.40/x
  3. Step 3: Cross multiply
    385,730.60x = 577,818.30 × 267,535.40
  4. Step 4: Simplify right side
    385,730.60x = 154,586,850,017.82
  5. Step 5: Solve for x
    x = 154,586,850,017.82/385,730.60
  6. Step 6: Final answer
    x = 400,763.77

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1.5x scale

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.