Home / 908,116.48-1,252,917.79-515,585.22

Finding the Fourth Proportional to 908,116.48, 1,252,917.79 and 515,585.22

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Solution

The fourth proportional to 908,116.48, 1,252,917.79 and 515,585.22 is: 711,346.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,116.48 : 1,252,917.79 = 515,585.22 : x
  2. Step 2: Convert to fraction form
    908,116.48/1,252,917.79 = 515,585.22/x
  3. Step 3: Cross multiply
    908,116.48x = 1,252,917.79 × 515,585.22
  4. Step 4: Simplify right side
    908,116.48x = 645,985,894,399.06
  5. Step 5: Solve for x
    x = 645,985,894,399.06/908,116.48
  6. Step 6: Final answer
    x = 711,346.96

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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.