Home / 1,409,787.38-1,945,508.16-765,207.40

Finding the Fourth Proportional to 1,409,787.38, 1,945,508.16 and 765,207.40

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Solution

The fourth proportional to 1,409,787.38, 1,945,508.16 and 765,207.40 is: 1,055,987.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,787.38 : 1,945,508.16 = 765,207.40 : x
  2. Step 2: Convert to fraction form
    1,409,787.38/1,945,508.16 = 765,207.40/x
  3. Step 3: Cross multiply
    1,409,787.38x = 1,945,508.16 × 765,207.40
  4. Step 4: Simplify right side
    1,409,787.38x = 1,488,717,245,656.15
  5. Step 5: Solve for x
    x = 1,488,717,245,656.15/1,409,787.38
  6. Step 6: Final answer
    x = 1,055,987.07

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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.