Home / 876,751.20-1,209,902.40-474,343.20

Finding the Fourth Proportional to 876,751.20, 1,209,902.40 and 474,343.20

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Solution

The fourth proportional to 876,751.20, 1,209,902.40 and 474,343.20 is: 654,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,751.20 : 1,209,902.40 = 474,343.20 : x
  2. Step 2: Convert to fraction form
    876,751.20/1,209,902.40 = 474,343.20/x
  3. Step 3: Cross multiply
    876,751.20x = 1,209,902.40 × 474,343.20
  4. Step 4: Simplify right side
    876,751.20x = 573,908,976,103.68
  5. Step 5: Solve for x
    x = 573,908,976,103.68/876,751.20
  6. Step 6: Final answer
    x = 654,585.90

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1.5x scale

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.