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Finding the Fourth Proportional to 573,342.72, 791,222.40 and 315,230.56

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Solution

The fourth proportional to 573,342.72, 791,222.40 and 315,230.56 is: 435,023.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,342.72 : 791,222.40 = 315,230.56 : x
  2. Step 2: Convert to fraction form
    573,342.72/791,222.40 = 315,230.56/x
  3. Step 3: Cross multiply
    573,342.72x = 791,222.40 × 315,230.56
  4. Step 4: Simplify right side
    573,342.72x = 249,417,480,236.54
  5. Step 5: Solve for x
    x = 249,417,480,236.54/573,342.72
  6. Step 6: Final answer
    x = 435,023.37

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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.