Home / 1,982,143.12-2,973,657.78-634,386.52

Finding the Fourth Proportional to 1,982,143.12, 2,973,657.78 and 634,386.52

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Solution

The fourth proportional to 1,982,143.12, 2,973,657.78 and 634,386.52 is: 951,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982,143.12 : 2,973,657.78 = 634,386.52 : x
  2. Step 2: Convert to fraction form
    1,982,143.12/2,973,657.78 = 634,386.52/x
  3. Step 3: Cross multiply
    1,982,143.12x = 2,973,657.78 × 634,386.52
  4. Step 4: Simplify right side
    1,982,143.12x = 1,886,448,410,725.13
  5. Step 5: Solve for x
    x = 1,886,448,410,725.13/1,982,143.12
  6. Step 6: Final answer
    x = 951,721.59

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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.