Home / 681,570.30-1,022,404.05-208,254.90

Finding the Fourth Proportional to 681,570.30, 1,022,404.05 and 208,254.90

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Solution

The fourth proportional to 681,570.30, 1,022,404.05 and 208,254.90 is: 312,397.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,570.30 : 1,022,404.05 = 208,254.90 : x
  2. Step 2: Convert to fraction form
    681,570.30/1,022,404.05 = 208,254.90/x
  3. Step 3: Cross multiply
    681,570.30x = 1,022,404.05 × 208,254.90
  4. Step 4: Simplify right side
    681,570.30x = 212,920,653,192.35
  5. Step 5: Solve for x
    x = 212,920,653,192.35/681,570.30
  6. Step 6: Final answer
    x = 312,397.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.