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Finding the Fourth Proportional to 500,957.20, 749,661.98 and 311,506.78

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Solution

The fourth proportional to 500,957.20, 749,661.98 and 311,506.78 is: 466,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,957.20 : 749,661.98 = 311,506.78 : x
  2. Step 2: Convert to fraction form
    500,957.20/749,661.98 = 311,506.78/x
  3. Step 3: Cross multiply
    500,957.20x = 749,661.98 × 311,506.78
  4. Step 4: Simplify right side
    500,957.20x = 233,524,789,478.22
  5. Step 5: Solve for x
    x = 233,524,789,478.22/500,957.20
  6. Step 6: Final answer
    x = 466,157.17

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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.