Home / 808,639.80-1,212,959.70-684,223.80

Finding the Fourth Proportional to 808,639.80, 1,212,959.70 and 684,223.80

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Solution

The fourth proportional to 808,639.80, 1,212,959.70 and 684,223.80 is: 1,026,335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,639.80 : 1,212,959.70 = 684,223.80 : x
  2. Step 2: Convert to fraction form
    808,639.80/1,212,959.70 = 684,223.80/x
  3. Step 3: Cross multiply
    808,639.80x = 1,212,959.70 × 684,223.80
  4. Step 4: Simplify right side
    808,639.80x = 829,935,895,180.86
  5. Step 5: Solve for x
    x = 829,935,895,180.86/808,639.80
  6. Step 6: Final answer
    x = 1,026,335.70

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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.