Home / 861,445.90-1,188,476.48-860,117.32

Finding the Fourth Proportional to 861,445.90, 1,188,476.48 and 860,117.32

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Solution

The fourth proportional to 861,445.90, 1,188,476.48 and 860,117.32 is: 1,186,643.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,445.90 : 1,188,476.48 = 860,117.32 : x
  2. Step 2: Convert to fraction form
    861,445.90/1,188,476.48 = 860,117.32/x
  3. Step 3: Cross multiply
    861,445.90x = 1,188,476.48 × 860,117.32
  4. Step 4: Simplify right side
    861,445.90x = 1,022,229,204,860.63
  5. Step 5: Solve for x
    x = 1,022,229,204,860.63/861,445.90
  6. Step 6: Final answer
    x = 1,186,643.53

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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.