Home / 2,138,667.40-3,208,001.10-642,759.40

Finding the Fourth Proportional to 2,138,667.40, 3,208,001.10 and 642,759.40

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Solution

The fourth proportional to 2,138,667.40, 3,208,001.10 and 642,759.40 is: 964,139.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,667.40 : 3,208,001.10 = 642,759.40 : x
  2. Step 2: Convert to fraction form
    2,138,667.40/3,208,001.10 = 642,759.40/x
  3. Step 3: Cross multiply
    2,138,667.40x = 3,208,001.10 × 642,759.40
  4. Step 4: Simplify right side
    2,138,667.40x = 2,061,972,862,235.34
  5. Step 5: Solve for x
    x = 2,061,972,862,235.34/2,138,667.40
  6. Step 6: Final answer
    x = 964,139.10

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Similar ratio
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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.