Home / 2,124,400.72-3,187,928.76-862,228.36

Finding the Fourth Proportional to 2,124,400.72, 3,187,928.76 and 862,228.36

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Solution

The fourth proportional to 2,124,400.72, 3,187,928.76 and 862,228.36 is: 1,293,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124,400.72 : 3,187,928.76 = 862,228.36 : x
  2. Step 2: Convert to fraction form
    2,124,400.72/3,187,928.76 = 862,228.36/x
  3. Step 3: Cross multiply
    2,124,400.72x = 3,187,928.76 × 862,228.36
  4. Step 4: Simplify right side
    2,124,400.72x = 2,748,722,586,531.63
  5. Step 5: Solve for x
    x = 2,748,722,586,531.63/2,124,400.72
  6. Step 6: Final answer
    x = 1,293,881.40

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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.