Home / 891,339.12-1,230,031.17-504,147.78

Finding the Fourth Proportional to 891,339.12, 1,230,031.17 and 504,147.78

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Solution

The fourth proportional to 891,339.12, 1,230,031.17 and 504,147.78 is: 695,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,339.12 : 1,230,031.17 = 504,147.78 : x
  2. Step 2: Convert to fraction form
    891,339.12/1,230,031.17 = 504,147.78/x
  3. Step 3: Cross multiply
    891,339.12x = 1,230,031.17 × 504,147.78
  4. Step 4: Simplify right side
    891,339.12x = 620,117,483,686.30
  5. Step 5: Solve for x
    x = 620,117,483,686.30/891,339.12
  6. Step 6: Final answer
    x = 695,714.43

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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.