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Finding the Fourth Proportional to 485,454.15, 728,064.54 and 248,674.95

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Solution

The fourth proportional to 485,454.15, 728,064.54 and 248,674.95 is: 372,952.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,454.15 : 728,064.54 = 248,674.95 : x
  2. Step 2: Convert to fraction form
    485,454.15/728,064.54 = 248,674.95/x
  3. Step 3: Cross multiply
    485,454.15x = 728,064.54 × 248,674.95
  4. Step 4: Simplify right side
    485,454.15x = 181,051,413,081.27
  5. Step 5: Solve for x
    x = 181,051,413,081.27/485,454.15
  6. Step 6: Final answer
    x = 372,952.65

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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.