Home / 1,376,339.40-1,899,284.09-764,531.55

Finding the Fourth Proportional to 1,376,339.40, 1,899,284.09 and 764,531.55

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Solution

The fourth proportional to 1,376,339.40, 1,899,284.09 and 764,531.55 is: 1,055,017.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,339.40 : 1,899,284.09 = 764,531.55 : x
  2. Step 2: Convert to fraction form
    1,376,339.40/1,899,284.09 = 764,531.55/x
  3. Step 3: Cross multiply
    1,376,339.40x = 1,899,284.09 × 764,531.55
  4. Step 4: Simplify right side
    1,376,339.40x = 1,452,062,605,395.38
  5. Step 5: Solve for x
    x = 1,452,062,605,395.38/1,376,339.40
  6. Step 6: Final answer
    x = 1,055,017.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.