Home / 855,016.30-1,281,876.45-434,593.90

Finding the Fourth Proportional to 855,016.30, 1,281,876.45 and 434,593.90

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Solution

The fourth proportional to 855,016.30, 1,281,876.45 and 434,593.90 is: 651,561.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,016.30 : 1,281,876.45 = 434,593.90 : x
  2. Step 2: Convert to fraction form
    855,016.30/1,281,876.45 = 434,593.90/x
  3. Step 3: Cross multiply
    855,016.30x = 1,281,876.45 × 434,593.90
  4. Step 4: Simplify right side
    855,016.30x = 557,095,685,723.66
  5. Step 5: Solve for x
    x = 557,095,685,723.66/855,016.30
  6. Step 6: Final answer
    x = 651,561.48

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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.