Home / 1,288,378.60-1,930,235.10-1,101,754.60

Finding the Fourth Proportional to 1,288,378.60, 1,930,235.10 and 1,101,754.60

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Solution

The fourth proportional to 1,288,378.60, 1,930,235.10 and 1,101,754.60 is: 1,650,637.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,378.60 : 1,930,235.10 = 1,101,754.60 : x
  2. Step 2: Convert to fraction form
    1,288,378.60/1,930,235.10 = 1,101,754.60/x
  3. Step 3: Cross multiply
    1,288,378.60x = 1,930,235.10 × 1,101,754.60
  4. Step 4: Simplify right side
    1,288,378.60x = 2,126,645,400,506.46
  5. Step 5: Solve for x
    x = 2,126,645,400,506.46/1,288,378.60
  6. Step 6: Final answer
    x = 1,650,637.01

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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.