Home / 722,110.53-996,543.63-399,820.58

Finding the Fourth Proportional to 722,110.53, 996,543.63 and 399,820.58

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Solution

The fourth proportional to 722,110.53, 996,543.63 and 399,820.58 is: 551,769.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,110.53 : 996,543.63 = 399,820.58 : x
  2. Step 2: Convert to fraction form
    722,110.53/996,543.63 = 399,820.58/x
  3. Step 3: Cross multiply
    722,110.53x = 996,543.63 × 399,820.58
  4. Step 4: Simplify right side
    722,110.53x = 398,438,647,159.19
  5. Step 5: Solve for x
    x = 398,438,647,159.19/722,110.53
  6. Step 6: Final answer
    x = 551,769.61

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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.