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Finding the Fourth Proportional to 542,560.82, 748,742.88 and 300,853.58

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Solution

The fourth proportional to 542,560.82, 748,742.88 and 300,853.58 is: 415,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,560.82 : 748,742.88 = 300,853.58 : x
  2. Step 2: Convert to fraction form
    542,560.82/748,742.88 = 300,853.58/x
  3. Step 3: Cross multiply
    542,560.82x = 748,742.88 × 300,853.58
  4. Step 4: Simplify right side
    542,560.82x = 225,261,975,947.51
  5. Step 5: Solve for x
    x = 225,261,975,947.51/542,560.82
  6. Step 6: Final answer
    x = 415,182.90

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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.