Home / 879,043.20-1,315,065.60-762,014.40

Finding the Fourth Proportional to 879,043.20, 1,315,065.60 and 762,014.40

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Solution

The fourth proportional to 879,043.20, 1,315,065.60 and 762,014.40 is: 1,139,988.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,043.20 : 1,315,065.60 = 762,014.40 : x
  2. Step 2: Convert to fraction form
    879,043.20/1,315,065.60 = 762,014.40/x
  3. Step 3: Cross multiply
    879,043.20x = 1,315,065.60 × 762,014.40
  4. Step 4: Simplify right side
    879,043.20x = 1,002,098,924,144.64
  5. Step 5: Solve for x
    x = 1,002,098,924,144.64/879,043.20
  6. Step 6: Final answer
    x = 1,139,988.26

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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.