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Finding the Fourth Proportional to 603,913.80, 906,389.10 and 267,472.20

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Solution

The fourth proportional to 603,913.80, 906,389.10 and 267,472.20 is: 401,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,913.80 : 906,389.10 = 267,472.20 : x
  2. Step 2: Convert to fraction form
    603,913.80/906,389.10 = 267,472.20/x
  3. Step 3: Cross multiply
    603,913.80x = 906,389.10 × 267,472.20
  4. Step 4: Simplify right side
    603,913.80x = 242,433,886,633.02
  5. Step 5: Solve for x
    x = 242,433,886,633.02/603,913.80
  6. Step 6: Final answer
    x = 401,437.90

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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.