Home / 1,270,788.12-1,753,707.72-690,010.92

Finding the Fourth Proportional to 1,270,788.12, 1,753,707.72 and 690,010.92

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Solution

The fourth proportional to 1,270,788.12, 1,753,707.72 and 690,010.92 is: 952,225.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,788.12 : 1,753,707.72 = 690,010.92 : x
  2. Step 2: Convert to fraction form
    1,270,788.12/1,753,707.72 = 690,010.92/x
  3. Step 3: Cross multiply
    1,270,788.12x = 1,753,707.72 × 690,010.92
  4. Step 4: Simplify right side
    1,270,788.12x = 1,210,077,477,288.30
  5. Step 5: Solve for x
    x = 1,210,077,477,288.30/1,270,788.12
  6. Step 6: Final answer
    x = 952,225.99

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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.