Home / 1,261,012.28-1,740,146.78-744,931.89

Finding the Fourth Proportional to 1,261,012.28, 1,740,146.78 and 744,931.89

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Solution

The fourth proportional to 1,261,012.28, 1,740,146.78 and 744,931.89 is: 1,027,976.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,012.28 : 1,740,146.78 = 744,931.89 : x
  2. Step 2: Convert to fraction form
    1,261,012.28/1,740,146.78 = 744,931.89/x
  3. Step 3: Cross multiply
    1,261,012.28x = 1,740,146.78 × 744,931.89
  4. Step 4: Simplify right side
    1,261,012.28x = 1,296,290,831,565.14
  5. Step 5: Solve for x
    x = 1,296,290,831,565.14/1,261,012.28
  6. Step 6: Final answer
    x = 1,027,976.38

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1.5x scale

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.