Home / 1,382,042.18-1,907,134.30-761,820.19

Finding the Fourth Proportional to 1,382,042.18, 1,907,134.30 and 761,820.19

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Solution

The fourth proportional to 1,382,042.18, 1,907,134.30 and 761,820.19 is: 1,051,265.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,042.18 : 1,907,134.30 = 761,820.19 : x
  2. Step 2: Convert to fraction form
    1,382,042.18/1,907,134.30 = 761,820.19/x
  3. Step 3: Cross multiply
    1,382,042.18x = 1,907,134.30 × 761,820.19
  4. Step 4: Simplify right side
    1,382,042.18x = 1,452,893,414,781.52
  5. Step 5: Solve for x
    x = 1,452,893,414,781.52/1,382,042.18
  6. Step 6: Final answer
    x = 1,051,265.61

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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.