Home / 1,375,043.73-1,897,580.57-763,235.88

Finding the Fourth Proportional to 1,375,043.73, 1,897,580.57 and 763,235.88

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Solution

The fourth proportional to 1,375,043.73, 1,897,580.57 and 763,235.88 is: 1,053,276.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,043.73 : 1,897,580.57 = 763,235.88 : x
  2. Step 2: Convert to fraction form
    1,375,043.73/1,897,580.57 = 763,235.88/x
  3. Step 3: Cross multiply
    1,375,043.73x = 1,897,580.57 × 763,235.88
  4. Step 4: Simplify right side
    1,375,043.73x = 1,448,301,572,398.67
  5. Step 5: Solve for x
    x = 1,448,301,572,398.67/1,375,043.73
  6. Step 6: Final answer
    x = 1,053,276.74

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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.