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Finding the Fourth Proportional to 542,706.09, 748,959.41 and 300,974.27

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Solution

The fourth proportional to 542,706.09, 748,959.41 and 300,974.27 is: 415,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,706.09 : 748,959.41 = 300,974.27 : x
  2. Step 2: Convert to fraction form
    542,706.09/748,959.41 = 300,974.27/x
  3. Step 3: Cross multiply
    542,706.09x = 748,959.41 × 300,974.27
  4. Step 4: Simplify right side
    542,706.09x = 225,417,506,434.71
  5. Step 5: Solve for x
    x = 225,417,506,434.71/542,706.09
  6. Step 6: Final answer
    x = 415,358.35

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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.