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Finding the Fourth Proportional to 542,840.90, 749,210.26 and 301,201.34

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Solution

The fourth proportional to 542,840.90, 749,210.26 and 301,201.34 is: 415,707.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,840.90 : 749,210.26 = 301,201.34 : x
  2. Step 2: Convert to fraction form
    542,840.90/749,210.26 = 301,201.34/x
  3. Step 3: Cross multiply
    542,840.90x = 749,210.26 × 301,201.34
  4. Step 4: Simplify right side
    542,840.90x = 225,663,134,253.75
  5. Step 5: Solve for x
    x = 225,663,134,253.75/542,840.90
  6. Step 6: Final answer
    x = 415,707.69

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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.