Home / 858,194.10-1,285,721.28-401,947.62

Finding the Fourth Proportional to 858,194.10, 1,285,721.28 and 401,947.62

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Solution

The fourth proportional to 858,194.10, 1,285,721.28 and 401,947.62 is: 602,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,194.10 : 1,285,721.28 = 401,947.62 : x
  2. Step 2: Convert to fraction form
    858,194.10/1,285,721.28 = 401,947.62/x
  3. Step 3: Cross multiply
    858,194.10x = 1,285,721.28 × 401,947.62
  4. Step 4: Simplify right side
    858,194.10x = 516,792,608,479.35
  5. Step 5: Solve for x
    x = 516,792,608,479.35/858,194.10
  6. Step 6: Final answer
    x = 602,186.16

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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.