Home / 1,225,141.61-1,690,615.40-681,257.18

Finding the Fourth Proportional to 1,225,141.61, 1,690,615.40 and 681,257.18

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Solution

The fourth proportional to 1,225,141.61, 1,690,615.40 and 681,257.18 is: 940,090.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,141.61 : 1,690,615.40 = 681,257.18 : x
  2. Step 2: Convert to fraction form
    1,225,141.61/1,690,615.40 = 681,257.18/x
  3. Step 3: Cross multiply
    1,225,141.61x = 1,690,615.40 × 681,257.18
  4. Step 4: Simplify right side
    1,225,141.61x = 1,151,743,880,688.82
  5. Step 5: Solve for x
    x = 1,151,743,880,688.82/1,225,141.61
  6. Step 6: Final answer
    x = 940,090.42

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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.