Home / 1,182,780.72-1,632,236.40-638,916.33

Finding the Fourth Proportional to 1,182,780.72, 1,632,236.40 and 638,916.33

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Solution

The fourth proportional to 1,182,780.72, 1,632,236.40 and 638,916.33 is: 881,704.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,780.72 : 1,632,236.40 = 638,916.33 : x
  2. Step 2: Convert to fraction form
    1,182,780.72/1,632,236.40 = 638,916.33/x
  3. Step 3: Cross multiply
    1,182,780.72x = 1,632,236.40 × 638,916.33
  4. Step 4: Simplify right side
    1,182,780.72x = 1,042,862,490,380.41
  5. Step 5: Solve for x
    x = 1,042,862,490,380.41/1,182,780.72
  6. Step 6: Final answer
    x = 881,704.00

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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.