Home / 1,229,661.72-1,696,934.61-678,364.92

Finding the Fourth Proportional to 1,229,661.72, 1,696,934.61 and 678,364.92

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Solution

The fourth proportional to 1,229,661.72, 1,696,934.61 and 678,364.92 is: 936,144.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,661.72 : 1,696,934.61 = 678,364.92 : x
  2. Step 2: Convert to fraction form
    1,229,661.72/1,696,934.61 = 678,364.92/x
  3. Step 3: Cross multiply
    1,229,661.72x = 1,696,934.61 × 678,364.92
  4. Step 4: Simplify right side
    1,229,661.72x = 1,151,140,910,957.88
  5. Step 5: Solve for x
    x = 1,151,140,910,957.88/1,229,661.72
  6. Step 6: Final answer
    x = 936,144.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.