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Finding the Fourth Proportional to 541,362.20, 747,276.75 and 315,007.70

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Solution

The fourth proportional to 541,362.20, 747,276.75 and 315,007.70 is: 434,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,362.20 : 747,276.75 = 315,007.70 : x
  2. Step 2: Convert to fraction form
    541,362.20/747,276.75 = 315,007.70/x
  3. Step 3: Cross multiply
    541,362.20x = 747,276.75 × 315,007.70
  4. Step 4: Simplify right side
    541,362.20x = 235,397,926,544.59
  5. Step 5: Solve for x
    x = 235,397,926,544.59/541,362.20
  6. Step 6: Final answer
    x = 434,825.20

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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.