Home / 879,765.12-1,320,425.28-579,404.16

Finding the Fourth Proportional to 879,765.12, 1,320,425.28 and 579,404.16

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Solution

The fourth proportional to 879,765.12, 1,320,425.28 and 579,404.16 is: 869,618.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,765.12 : 1,320,425.28 = 579,404.16 : x
  2. Step 2: Convert to fraction form
    879,765.12/1,320,425.28 = 579,404.16/x
  3. Step 3: Cross multiply
    879,765.12x = 1,320,425.28 × 579,404.16
  4. Step 4: Simplify right side
    879,765.12x = 765,059,900,201.17
  5. Step 5: Solve for x
    x = 765,059,900,201.17/879,765.12
  6. Step 6: Final answer
    x = 869,618.36

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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.