Home / 690,711.46-1,036,233.07-264,240.30

Finding the Fourth Proportional to 690,711.46, 1,036,233.07 and 264,240.30

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Solution

The fourth proportional to 690,711.46, 1,036,233.07 and 264,240.30 is: 396,423.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,711.46 : 1,036,233.07 = 264,240.30 : x
  2. Step 2: Convert to fraction form
    690,711.46/1,036,233.07 = 264,240.30/x
  3. Step 3: Cross multiply
    690,711.46x = 1,036,233.07 × 264,240.30
  4. Step 4: Simplify right side
    690,711.46x = 273,814,537,286.72
  5. Step 5: Solve for x
    x = 273,814,537,286.72/690,711.46
  6. Step 6: Final answer
    x = 396,423.91

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Double scale
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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.