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Finding the Fourth Proportional to 646,956.96, 892,788.72 and 360,470.88

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Solution

The fourth proportional to 646,956.96, 892,788.72 and 360,470.88 is: 497,443.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,956.96 : 892,788.72 = 360,470.88 : x
  2. Step 2: Convert to fraction form
    646,956.96/892,788.72 = 360,470.88/x
  3. Step 3: Cross multiply
    646,956.96x = 892,788.72 × 360,470.88
  4. Step 4: Simplify right side
    646,956.96x = 321,824,335,552.47
  5. Step 5: Solve for x
    x = 321,824,335,552.47/646,956.96
  6. Step 6: Final answer
    x = 497,443.19

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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.