Home / 1,409,689.71-1,945,372.75-765,109.91

Finding the Fourth Proportional to 1,409,689.71, 1,945,372.75 and 765,109.91

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Solution

The fourth proportional to 1,409,689.71, 1,945,372.75 and 765,109.91 is: 1,055,852.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,689.71 : 1,945,372.75 = 765,109.91 : x
  2. Step 2: Convert to fraction form
    1,409,689.71/1,945,372.75 = 765,109.91/x
  3. Step 3: Cross multiply
    1,409,689.71x = 1,945,372.75 × 765,109.91
  4. Step 4: Simplify right side
    1,409,689.71x = 1,488,423,972,619.61
  5. Step 5: Solve for x
    x = 1,488,423,972,619.61/1,409,689.71
  6. Step 6: Final answer
    x = 1,055,852.19

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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.