Home / 1,145,881.19-1,718,687.48-387,720.39

Finding the Fourth Proportional to 1,145,881.19, 1,718,687.48 and 387,720.39

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Solution

The fourth proportional to 1,145,881.19, 1,718,687.48 and 387,720.39 is: 581,535.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,881.19 : 1,718,687.48 = 387,720.39 : x
  2. Step 2: Convert to fraction form
    1,145,881.19/1,718,687.48 = 387,720.39/x
  3. Step 3: Cross multiply
    1,145,881.19x = 1,718,687.48 × 387,720.39
  4. Step 4: Simplify right side
    1,145,881.19x = 666,370,180,033.72
  5. Step 5: Solve for x
    x = 666,370,180,033.72/1,145,881.19
  6. Step 6: Final answer
    x = 581,535.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.