Home / 1,262,809.10-1,894,230.07-421,360.85

Finding the Fourth Proportional to 1,262,809.10, 1,894,230.07 and 421,360.85

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Solution

The fourth proportional to 1,262,809.10, 1,894,230.07 and 421,360.85 is: 632,046.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,809.10 : 1,894,230.07 = 421,360.85 : x
  2. Step 2: Convert to fraction form
    1,262,809.10/1,894,230.07 = 421,360.85/x
  3. Step 3: Cross multiply
    1,262,809.10x = 1,894,230.07 × 421,360.85
  4. Step 4: Simplify right side
    1,262,809.10x = 798,154,396,072.93
  5. Step 5: Solve for x
    x = 798,154,396,072.93/1,262,809.10
  6. Step 6: Final answer
    x = 632,046.76

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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.