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Finding the Fourth Proportional to 542,601.04, 748,826.76 and 300,905.68

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Solution

The fourth proportional to 542,601.04, 748,826.76 and 300,905.68 is: 415,270.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,601.04 : 748,826.76 = 300,905.68 : x
  2. Step 2: Convert to fraction form
    542,601.04/748,826.76 = 300,905.68/x
  3. Step 3: Cross multiply
    542,601.04x = 748,826.76 × 300,905.68
  4. Step 4: Simplify right side
    542,601.04x = 225,326,225,420.00
  5. Step 5: Solve for x
    x = 225,326,225,420.00/542,601.04
  6. Step 6: Final answer
    x = 415,270.54

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Half scale
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Double scale
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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.