Home / 1,288,790.55-1,933,984.13-749,300.70

Finding the Fourth Proportional to 1,288,790.55, 1,933,984.13 and 749,300.70

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Solution

The fourth proportional to 1,288,790.55, 1,933,984.13 and 749,300.70 is: 1,124,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,790.55 : 1,933,984.13 = 749,300.70 : x
  2. Step 2: Convert to fraction form
    1,288,790.55/1,933,984.13 = 749,300.70/x
  3. Step 3: Cross multiply
    1,288,790.55x = 1,933,984.13 × 749,300.70
  4. Step 4: Simplify right side
    1,288,790.55x = 1,449,135,662,397.89
  5. Step 5: Solve for x
    x = 1,449,135,662,397.89/1,288,790.55
  6. Step 6: Final answer
    x = 1,124,415.18

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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.