Home / 722,207.90-996,646.82-399,918.04

Finding the Fourth Proportional to 722,207.90, 996,646.82 and 399,918.04

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Solution

The fourth proportional to 722,207.90, 996,646.82 and 399,918.04 is: 551,886.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,207.90 : 996,646.82 = 399,918.04 : x
  2. Step 2: Convert to fraction form
    722,207.90/996,646.82 = 399,918.04/x
  3. Step 3: Cross multiply
    722,207.90x = 996,646.82 × 399,918.04
  4. Step 4: Simplify right side
    722,207.90x = 398,577,038,335.43
  5. Step 5: Solve for x
    x = 398,577,038,335.43/722,207.90
  6. Step 6: Final answer
    x = 551,886.84

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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.