Home / 879,034.20-1,315,052.10-762,005.40

Finding the Fourth Proportional to 879,034.20, 1,315,052.10 and 762,005.40

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Solution

The fourth proportional to 879,034.20, 1,315,052.10 and 762,005.40 is: 1,139,974.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,034.20 : 1,315,052.10 = 762,005.40 : x
  2. Step 2: Convert to fraction form
    879,034.20/1,315,052.10 = 762,005.40/x
  3. Step 3: Cross multiply
    879,034.20x = 1,315,052.10 × 762,005.40
  4. Step 4: Simplify right side
    879,034.20x = 1,002,076,801,481.34
  5. Step 5: Solve for x
    x = 1,002,076,801,481.34/879,034.20
  6. Step 6: Final answer
    x = 1,139,974.76

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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.