Home / 721,067.15-994,962.12-415,084.40

Finding the Fourth Proportional to 721,067.15, 994,962.12 and 415,084.40

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Solution

The fourth proportional to 721,067.15, 994,962.12 and 415,084.40 is: 572,752.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,067.15 : 994,962.12 = 415,084.40 : x
  2. Step 2: Convert to fraction form
    721,067.15/994,962.12 = 415,084.40/x
  3. Step 3: Cross multiply
    721,067.15x = 994,962.12 × 415,084.40
  4. Step 4: Simplify right side
    721,067.15x = 412,993,254,602.93
  5. Step 5: Solve for x
    x = 412,993,254,602.93/721,067.15
  6. Step 6: Final answer
    x = 572,752.84

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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.