Home / 1,421,791.07-1,962,424.26-810,306.50

Finding the Fourth Proportional to 1,421,791.07, 1,962,424.26 and 810,306.50

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Solution

The fourth proportional to 1,421,791.07, 1,962,424.26 and 810,306.50 is: 1,118,423.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,791.07 : 1,962,424.26 = 810,306.50 : x
  2. Step 2: Convert to fraction form
    1,421,791.07/1,962,424.26 = 810,306.50/x
  3. Step 3: Cross multiply
    1,421,791.07x = 1,962,424.26 × 810,306.50
  4. Step 4: Simplify right side
    1,421,791.07x = 1,590,165,123,823.57
  5. Step 5: Solve for x
    x = 1,590,165,123,823.57/1,421,791.07
  6. Step 6: Final answer
    x = 1,118,423.91

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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.