Home / 1,218,487.24-1,681,512.18-681,943.24

Finding the Fourth Proportional to 1,218,487.24, 1,681,512.18 and 681,943.24

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Solution

The fourth proportional to 1,218,487.24, 1,681,512.18 and 681,943.24 is: 941,081.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,487.24 : 1,681,512.18 = 681,943.24 : x
  2. Step 2: Convert to fraction form
    1,218,487.24/1,681,512.18 = 681,943.24/x
  3. Step 3: Cross multiply
    1,218,487.24x = 1,681,512.18 × 681,943.24
  4. Step 4: Simplify right side
    1,218,487.24x = 1,146,695,864,128.66
  5. Step 5: Solve for x
    x = 1,146,695,864,128.66/1,218,487.24
  6. Step 6: Final answer
    x = 941,081.55

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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.