Home / 1,421,790.82-1,962,423.92-810,306.24

Finding the Fourth Proportional to 1,421,790.82, 1,962,423.92 and 810,306.24

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Solution

The fourth proportional to 1,421,790.82, 1,962,423.92 and 810,306.24 is: 1,118,423.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,790.82 : 1,962,423.92 = 810,306.24 : x
  2. Step 2: Convert to fraction form
    1,421,790.82/1,962,423.92 = 810,306.24/x
  3. Step 3: Cross multiply
    1,421,790.82x = 1,962,423.92 × 810,306.24
  4. Step 4: Simplify right side
    1,421,790.82x = 1,590,164,347,901.26
  5. Step 5: Solve for x
    x = 1,590,164,347,901.26/1,421,790.82
  6. Step 6: Final answer
    x = 1,118,423.56

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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.