Home / 489,268.08-674,565.06-316,881.52

Finding the Fourth Proportional to 489,268.08, 674,565.06 and 316,881.52

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Solution

The fourth proportional to 489,268.08, 674,565.06 and 316,881.52 is: 436,891.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,268.08 : 674,565.06 = 316,881.52 : x
  2. Step 2: Convert to fraction form
    489,268.08/674,565.06 = 316,881.52/x
  3. Step 3: Cross multiply
    489,268.08x = 674,565.06 × 316,881.52
  4. Step 4: Simplify right side
    489,268.08x = 213,757,201,551.69
  5. Step 5: Solve for x
    x = 213,757,201,551.69/489,268.08
  6. Step 6: Final answer
    x = 436,891.78

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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.