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Finding the Fourth Proportional to 931,337.88, 1,396,967.94 and 266,489.88

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Solution

The fourth proportional to 931,337.88, 1,396,967.94 and 266,489.88 is: 399,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,337.88 : 1,396,967.94 = 266,489.88 : x
  2. Step 2: Convert to fraction form
    931,337.88/1,396,967.94 = 266,489.88/x
  3. Step 3: Cross multiply
    931,337.88x = 1,396,967.94 × 266,489.88
  4. Step 4: Simplify right side
    931,337.88x = 372,277,818,694.45
  5. Step 5: Solve for x
    x = 372,277,818,694.45/931,337.88
  6. Step 6: Final answer
    x = 399,723.70

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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.