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Finding the Fourth Proportional to 542,491.04, 748,636.28 and 300,767.42

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Solution

The fourth proportional to 542,491.04, 748,636.28 and 300,767.42 is: 415,058.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,491.04 : 748,636.28 = 300,767.42 : x
  2. Step 2: Convert to fraction form
    542,491.04/748,636.28 = 300,767.42/x
  3. Step 3: Cross multiply
    542,491.04x = 748,636.28 × 300,767.42
  4. Step 4: Simplify right side
    542,491.04x = 225,165,402,454.00
  5. Step 5: Solve for x
    x = 225,165,402,454.00/542,491.04
  6. Step 6: Final answer
    x = 415,058.29

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Similar ratio
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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.