Home / 722,254.32-996,710.02-399,964.02

Finding the Fourth Proportional to 722,254.32, 996,710.02 and 399,964.02

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Solution

The fourth proportional to 722,254.32, 996,710.02 and 399,964.02 is: 551,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,254.32 : 996,710.02 = 399,964.02 : x
  2. Step 2: Convert to fraction form
    722,254.32/996,710.02 = 399,964.02/x
  3. Step 3: Cross multiply
    722,254.32x = 996,710.02 × 399,964.02
  4. Step 4: Simplify right side
    722,254.32x = 398,648,146,373.48
  5. Step 5: Solve for x
    x = 398,648,146,373.48/722,254.32
  6. Step 6: Final answer
    x = 551,949.83

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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.