Home / 755,139.60-1,132,709.40-726,109.20

Finding the Fourth Proportional to 755,139.60, 1,132,709.40 and 726,109.20

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Solution

The fourth proportional to 755,139.60, 1,132,709.40 and 726,109.20 is: 1,089,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,139.60 : 1,132,709.40 = 726,109.20 : x
  2. Step 2: Convert to fraction form
    755,139.60/1,132,709.40 = 726,109.20/x
  3. Step 3: Cross multiply
    755,139.60x = 1,132,709.40 × 726,109.20
  4. Step 4: Simplify right side
    755,139.60x = 822,470,716,266.48
  5. Step 5: Solve for x
    x = 822,470,716,266.48/755,139.60
  6. Step 6: Final answer
    x = 1,089,163.80

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1.5x scale

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.