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Finding the Fourth Proportional to 891,737.40, 1,337,606.10 and 330,655.80

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Solution

The fourth proportional to 891,737.40, 1,337,606.10 and 330,655.80 is: 495,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,737.40 : 1,337,606.10 = 330,655.80 : x
  2. Step 2: Convert to fraction form
    891,737.40/1,337,606.10 = 330,655.80/x
  3. Step 3: Cross multiply
    891,737.40x = 1,337,606.10 × 330,655.80
  4. Step 4: Simplify right side
    891,737.40x = 442,287,215,080.38
  5. Step 5: Solve for x
    x = 442,287,215,080.38/891,737.40
  6. Step 6: Final answer
    x = 495,983.70

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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.