Home / 911,542.20-1,257,959.34-572,197.56

Finding the Fourth Proportional to 911,542.20, 1,257,959.34 and 572,197.56

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Solution

The fourth proportional to 911,542.20, 1,257,959.34 and 572,197.56 is: 789,652.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,542.20 : 1,257,959.34 = 572,197.56 : x
  2. Step 2: Convert to fraction form
    911,542.20/1,257,959.34 = 572,197.56/x
  3. Step 3: Cross multiply
    911,542.20x = 1,257,959.34 × 572,197.56
  4. Step 4: Simplify right side
    911,542.20x = 719,801,264,927.21
  5. Step 5: Solve for x
    x = 719,801,264,927.21/911,542.20
  6. Step 6: Final answer
    x = 789,652.16

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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.