Home / 859,313.20-1,287,006.36-410,348.56

Finding the Fourth Proportional to 859,313.20, 1,287,006.36 and 410,348.56

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Solution

The fourth proportional to 859,313.20, 1,287,006.36 and 410,348.56 is: 614,585.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,313.20 : 1,287,006.36 = 410,348.56 : x
  2. Step 2: Convert to fraction form
    859,313.20/1,287,006.36 = 410,348.56/x
  3. Step 3: Cross multiply
    859,313.20x = 1,287,006.36 × 410,348.56
  4. Step 4: Simplify right side
    859,313.20x = 528,121,206,536.84
  5. Step 5: Solve for x
    x = 528,121,206,536.84/859,313.20
  6. Step 6: Final answer
    x = 614,585.24

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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.