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Finding the Fourth Proportional to 542,559.15, 748,730.33 and 300,835.50

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Solution

The fourth proportional to 542,559.15, 748,730.33 and 300,835.50 is: 415,152.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,559.15 : 748,730.33 = 300,835.50 : x
  2. Step 2: Convert to fraction form
    542,559.15/748,730.33 = 300,835.50/x
  3. Step 3: Cross multiply
    542,559.15x = 748,730.33 × 300,835.50
  4. Step 4: Simplify right side
    542,559.15x = 225,244,661,686.54
  5. Step 5: Solve for x
    x = 225,244,661,686.54/542,559.15
  6. Step 6: Final answer
    x = 415,152.27

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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.