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Finding the Fourth Proportional to 1,376,730.07, 1,899,543.89 and 825,532.29

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Solution

The fourth proportional to 1,376,730.07, 1,899,543.89 and 825,532.29 is: 1,139,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,730.07 : 1,899,543.89 = 825,532.29 : x
  2. Step 2: Convert to fraction form
    1,376,730.07/1,899,543.89 = 825,532.29/x
  3. Step 3: Cross multiply
    1,376,730.07x = 1,899,543.89 × 825,532.29
  4. Step 4: Simplify right side
    1,376,730.07x = 1,568,134,819,531.04
  5. Step 5: Solve for x
    x = 1,568,134,819,531.04/1,376,730.07
  6. Step 6: Final answer
    x = 1,139,028.53

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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.