Home / 722,091.16-996,416.67-399,789.46

Finding the Fourth Proportional to 722,091.16, 996,416.67 and 399,789.46

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Solution

The fourth proportional to 722,091.16, 996,416.67 and 399,789.46 is: 551,671.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,091.16 : 996,416.67 = 399,789.46 : x
  2. Step 2: Convert to fraction form
    722,091.16/996,416.67 = 399,789.46/x
  3. Step 3: Cross multiply
    722,091.16x = 996,416.67 × 399,789.46
  4. Step 4: Simplify right side
    722,091.16x = 398,356,882,434.30
  5. Step 5: Solve for x
    x = 398,356,882,434.30/722,091.16
  6. Step 6: Final answer
    x = 551,671.18

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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.