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Finding the Fourth Proportional to 474,866.20, 655,377.78 and 270,870.40

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Solution

The fourth proportional to 474,866.20, 655,377.78 and 270,870.40 is: 373,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,866.20 : 655,377.78 = 270,870.40 : x
  2. Step 2: Convert to fraction form
    474,866.20/655,377.78 = 270,870.40/x
  3. Step 3: Cross multiply
    474,866.20x = 655,377.78 × 270,870.40
  4. Step 4: Simplify right side
    474,866.20x = 177,522,441,419.71
  5. Step 5: Solve for x
    x = 177,522,441,419.71/474,866.20
  6. Step 6: Final answer
    x = 373,836.76

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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.