Home / 1,638,237.80-2,260,494.06-912,926.54

Finding the Fourth Proportional to 1,638,237.80, 2,260,494.06 and 912,926.54

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Solution

The fourth proportional to 1,638,237.80, 2,260,494.06 and 912,926.54 is: 1,259,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,237.80 : 2,260,494.06 = 912,926.54 : x
  2. Step 2: Convert to fraction form
    1,638,237.80/2,260,494.06 = 912,926.54/x
  3. Step 3: Cross multiply
    1,638,237.80x = 2,260,494.06 × 912,926.54
  4. Step 4: Simplify right side
    1,638,237.80x = 2,063,665,020,886.35
  5. Step 5: Solve for x
    x = 2,063,665,020,886.35/1,638,237.80
  6. Step 6: Final answer
    x = 1,259,685.88

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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.