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Finding the Fourth Proportional to 722,186.88, 996,615.36 and 404,234.88

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Solution

The fourth proportional to 722,186.88, 996,615.36 and 404,234.88 is: 557,842.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,186.88 : 996,615.36 = 404,234.88 : x
  2. Step 2: Convert to fraction form
    722,186.88/996,615.36 = 404,234.88/x
  3. Step 3: Cross multiply
    722,186.88x = 996,615.36 × 404,234.88
  4. Step 4: Simplify right side
    722,186.88x = 402,866,690,455.76
  5. Step 5: Solve for x
    x = 402,866,690,455.76/722,186.88
  6. Step 6: Final answer
    x = 557,842.72

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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.