Home / 1,381,959.81-2,062,129.41-1,238,341.57

Finding the Fourth Proportional to 1,381,959.81, 2,062,129.41 and 1,238,341.57

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Solution

The fourth proportional to 1,381,959.81, 2,062,129.41 and 1,238,341.57 is: 1,847,825.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,959.81 : 2,062,129.41 = 1,238,341.57 : x
  2. Step 2: Convert to fraction form
    1,381,959.81/2,062,129.41 = 1,238,341.57/x
  3. Step 3: Cross multiply
    1,381,959.81x = 2,062,129.41 × 1,238,341.57
  4. Step 4: Simplify right side
    1,381,959.81x = 2,553,620,565,967.25
  5. Step 5: Solve for x
    x = 2,553,620,565,967.25/1,381,959.81
  6. Step 6: Final answer
    x = 1,847,825.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.