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Finding the Fourth Proportional to 573,340.72, 791,219.64 and 315,228.56

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Solution

The fourth proportional to 573,340.72, 791,219.64 and 315,228.56 is: 435,020.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,340.72 : 791,219.64 = 315,228.56 : x
  2. Step 2: Convert to fraction form
    573,340.72/791,219.64 = 315,228.56/x
  3. Step 3: Cross multiply
    573,340.72x = 791,219.64 × 315,228.56
  4. Step 4: Simplify right side
    573,340.72x = 249,415,027,760.92
  5. Step 5: Solve for x
    x = 249,415,027,760.92/573,340.72
  6. Step 6: Final answer
    x = 435,020.61

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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.