Home / 1,301,921.40-1,954,034.10-768,775.80

Finding the Fourth Proportional to 1,301,921.40, 1,954,034.10 and 768,775.80

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Solution

The fourth proportional to 1,301,921.40, 1,954,034.10 and 768,775.80 is: 1,153,843.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,921.40 : 1,954,034.10 = 768,775.80 : x
  2. Step 2: Convert to fraction form
    1,301,921.40/1,954,034.10 = 768,775.80/x
  3. Step 3: Cross multiply
    1,301,921.40x = 1,954,034.10 × 768,775.80
  4. Step 4: Simplify right side
    1,301,921.40x = 1,502,214,128,454.78
  5. Step 5: Solve for x
    x = 1,502,214,128,454.78/1,301,921.40
  6. Step 6: Final answer
    x = 1,153,843.95

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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.