Home / 1,486,422.64-2,229,718.74-421,381

Finding the Fourth Proportional to 1,486,422.64, 2,229,718.74 and 421,381

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Solution

The fourth proportional to 1,486,422.64, 2,229,718.74 and 421,381 is: 632,095.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,422.64 : 2,229,718.74 = 421,381 : x
  2. Step 2: Convert to fraction form
    1,486,422.64/2,229,718.74 = 421,381/x
  3. Step 3: Cross multiply
    1,486,422.64x = 2,229,718.74 × 421,381
  4. Step 4: Simplify right side
    1,486,422.64x = 939,561,112,379.94
  5. Step 5: Solve for x
    x = 939,561,112,379.94/1,486,422.64
  6. Step 6: Final answer
    x = 632,095.53

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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.