Home / 1,134,139.20-1,698,584.40-777,220.80

Finding the Fourth Proportional to 1,134,139.20, 1,698,584.40 and 777,220.80

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Solution

The fourth proportional to 1,134,139.20, 1,698,584.40 and 777,220.80 is: 1,164,032.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134,139.20 : 1,698,584.40 = 777,220.80 : x
  2. Step 2: Convert to fraction form
    1,134,139.20/1,698,584.40 = 777,220.80/x
  3. Step 3: Cross multiply
    1,134,139.20x = 1,698,584.40 × 777,220.80
  4. Step 4: Simplify right side
    1,134,139.20x = 1,320,175,126,235.52
  5. Step 5: Solve for x
    x = 1,320,175,126,235.52/1,134,139.20
  6. Step 6: Final answer
    x = 1,164,032.71

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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.