Home / 928,191.40-1,392,287.10-872,204.20

Finding the Fourth Proportional to 928,191.40, 1,392,287.10 and 872,204.20

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Solution

The fourth proportional to 928,191.40, 1,392,287.10 and 872,204.20 is: 1,308,306.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,191.40 : 1,392,287.10 = 872,204.20 : x
  2. Step 2: Convert to fraction form
    928,191.40/1,392,287.10 = 872,204.20/x
  3. Step 3: Cross multiply
    928,191.40x = 1,392,287.10 × 872,204.20
  4. Step 4: Simplify right side
    928,191.40x = 1,214,358,656,225.82
  5. Step 5: Solve for x
    x = 1,214,358,656,225.82/928,191.40
  6. Step 6: Final answer
    x = 1,308,306.30

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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.