Home / 1,290,492.57-1,780,868.94-717,527.73

Finding the Fourth Proportional to 1,290,492.57, 1,780,868.94 and 717,527.73

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Solution

The fourth proportional to 1,290,492.57, 1,780,868.94 and 717,527.73 is: 990,182.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,492.57 : 1,780,868.94 = 717,527.73 : x
  2. Step 2: Convert to fraction form
    1,290,492.57/1,780,868.94 = 717,527.73/x
  3. Step 3: Cross multiply
    1,290,492.57x = 1,780,868.94 × 717,527.73
  4. Step 4: Simplify right side
    1,290,492.57x = 1,277,822,847,945.71
  5. Step 5: Solve for x
    x = 1,277,822,847,945.71/1,290,492.57
  6. Step 6: Final answer
    x = 990,182.26

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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.