Home / 1,192,087.19-1,645,440.53-810,335.40

Finding the Fourth Proportional to 1,192,087.19, 1,645,440.53 and 810,335.40

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Solution

The fourth proportional to 1,192,087.19, 1,645,440.53 and 810,335.40 is: 1,118,507.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,087.19 : 1,645,440.53 = 810,335.40 : x
  2. Step 2: Convert to fraction form
    1,192,087.19/1,645,440.53 = 810,335.40/x
  3. Step 3: Cross multiply
    1,192,087.19x = 1,645,440.53 × 810,335.40
  4. Step 4: Simplify right side
    1,192,087.19x = 1,333,358,706,002.09
  5. Step 5: Solve for x
    x = 1,333,358,706,002.09/1,192,087.19
  6. Step 6: Final answer
    x = 1,118,507.71

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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.