Home / 851,718.63-1,279,432.49-514,917.90

Finding the Fourth Proportional to 851,718.63, 1,279,432.49 and 514,917.90

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Solution

The fourth proportional to 851,718.63, 1,279,432.49 and 514,917.90 is: 773,498.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,718.63 : 1,279,432.49 = 514,917.90 : x
  2. Step 2: Convert to fraction form
    851,718.63/1,279,432.49 = 514,917.90/x
  3. Step 3: Cross multiply
    851,718.63x = 1,279,432.49 × 514,917.90
  4. Step 4: Simplify right side
    851,718.63x = 658,802,688,367.98
  5. Step 5: Solve for x
    x = 658,802,688,367.98/851,718.63
  6. Step 6: Final answer
    x = 773,498.04

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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.