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Finding the Fourth Proportional to 542,243.45, 748,296.02 and 300,541.61

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Solution

The fourth proportional to 542,243.45, 748,296.02 and 300,541.61 is: 414,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,243.45 : 748,296.02 = 300,541.61 : x
  2. Step 2: Convert to fraction form
    542,243.45/748,296.02 = 300,541.61/x
  3. Step 3: Cross multiply
    542,243.45x = 748,296.02 × 300,541.61
  4. Step 4: Simplify right side
    542,243.45x = 224,894,090,607.39
  5. Step 5: Solve for x
    x = 224,894,090,607.39/542,243.45
  6. Step 6: Final answer
    x = 414,747.45

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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.