Home / 1,486,407-2,229,721.74-421,534.83

Finding the Fourth Proportional to 1,486,407, 2,229,721.74 and 421,534.83

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Solution

The fourth proportional to 1,486,407, 2,229,721.74 and 421,534.83 is: 632,333.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,407 : 2,229,721.74 = 421,534.83 : x
  2. Step 2: Convert to fraction form
    1,486,407/2,229,721.74 = 421,534.83/x
  3. Step 3: Cross multiply
    1,486,407x = 2,229,721.74 × 421,534.83
  4. Step 4: Simplify right side
    1,486,407x = 939,905,374,618.20
  5. Step 5: Solve for x
    x = 939,905,374,618.20/1,486,407
  6. Step 6: Final answer
    x = 632,333.79

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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.