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Finding the Fourth Proportional to 573,363.78, 791,257.20 and 315,251.52

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Solution

The fourth proportional to 573,363.78, 791,257.20 and 315,251.52 is: 435,055.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,363.78 : 791,257.20 = 315,251.52 : x
  2. Step 2: Convert to fraction form
    573,363.78/791,257.20 = 315,251.52/x
  3. Step 3: Cross multiply
    573,363.78x = 791,257.20 × 315,251.52
  4. Step 4: Simplify right side
    573,363.78x = 249,445,035,010.94
  5. Step 5: Solve for x
    x = 249,445,035,010.94/573,363.78
  6. Step 6: Final answer
    x = 435,055.45

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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.