Home / 788,654.92-1,088,343.82-426,078.78

Finding the Fourth Proportional to 788,654.92, 1,088,343.82 and 426,078.78

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Solution

The fourth proportional to 788,654.92, 1,088,343.82 and 426,078.78 is: 587,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,654.92 : 1,088,343.82 = 426,078.78 : x
  2. Step 2: Convert to fraction form
    788,654.92/1,088,343.82 = 426,078.78/x
  3. Step 3: Cross multiply
    788,654.92x = 1,088,343.82 × 426,078.78
  4. Step 4: Simplify right side
    788,654.92x = 463,720,207,046.14
  5. Step 5: Solve for x
    x = 463,720,207,046.14/788,654.92
  6. Step 6: Final answer
    x = 587,988.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.