Home / 1,225,103.28-1,690,643.93-681,227.39

Finding the Fourth Proportional to 1,225,103.28, 1,690,643.93 and 681,227.39

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Solution

The fourth proportional to 1,225,103.28, 1,690,643.93 and 681,227.39 is: 940,094.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,103.28 : 1,690,643.93 = 681,227.39 : x
  2. Step 2: Convert to fraction form
    1,225,103.28/1,690,643.93 = 681,227.39/x
  3. Step 3: Cross multiply
    1,225,103.28x = 1,690,643.93 × 681,227.39
  4. Step 4: Simplify right side
    1,225,103.28x = 1,151,712,956,221.51
  5. Step 5: Solve for x
    x = 1,151,712,956,221.51/1,225,103.28
  6. Step 6: Final answer
    x = 940,094.58

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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.