Home / 722,256.32-996,712.78-399,966.02

Finding the Fourth Proportional to 722,256.32, 996,712.78 and 399,966.02

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Solution

The fourth proportional to 722,256.32, 996,712.78 and 399,966.02 is: 551,952.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,256.32 : 996,712.78 = 399,966.02 : x
  2. Step 2: Convert to fraction form
    722,256.32/996,712.78 = 399,966.02/x
  3. Step 3: Cross multiply
    722,256.32x = 996,712.78 × 399,966.02
  4. Step 4: Simplify right side
    722,256.32x = 398,651,243,699.74
  5. Step 5: Solve for x
    x = 398,651,243,699.74/722,256.32
  6. Step 6: Final answer
    x = 551,952.59

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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.