Home / 859,315.92-1,287,010.35-410,351.28

Finding the Fourth Proportional to 859,315.92, 1,287,010.35 and 410,351.28

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Solution

The fourth proportional to 859,315.92, 1,287,010.35 and 410,351.28 is: 614,589.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,315.92 : 1,287,010.35 = 410,351.28 : x
  2. Step 2: Convert to fraction form
    859,315.92/1,287,010.35 = 410,351.28/x
  3. Step 3: Cross multiply
    859,315.92x = 1,287,010.35 × 410,351.28
  4. Step 4: Simplify right side
    859,315.92x = 528,126,344,495.75
  5. Step 5: Solve for x
    x = 528,126,344,495.75/859,315.92
  6. Step 6: Final answer
    x = 614,589.27

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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.