Home / 542,039.44-812,625-257,587.24

Finding the Fourth Proportional to 542,039.44, 812,625 and 257,587.24

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Solution

The fourth proportional to 542,039.44, 812,625 and 257,587.24 is: 386,174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,039.44 : 812,625 = 257,587.24 : x
  2. Step 2: Convert to fraction form
    542,039.44/812,625 = 257,587.24/x
  3. Step 3: Cross multiply
    542,039.44x = 812,625 × 257,587.24
  4. Step 4: Simplify right side
    542,039.44x = 209,321,830,905
  5. Step 5: Solve for x
    x = 209,321,830,905/542,039.44
  6. Step 6: Final answer
    x = 386,174.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.