Home / 1,021,721.85-1,532,768.67-422,357.49

Finding the Fourth Proportional to 1,021,721.85, 1,532,768.67 and 422,357.49

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Solution

The fourth proportional to 1,021,721.85, 1,532,768.67 and 422,357.49 is: 633,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,721.85 : 1,532,768.67 = 422,357.49 : x
  2. Step 2: Convert to fraction form
    1,021,721.85/1,532,768.67 = 422,357.49/x
  3. Step 3: Cross multiply
    1,021,721.85x = 1,532,768.67 × 422,357.49
  4. Step 4: Simplify right side
    1,021,721.85x = 647,376,328,211.84
  5. Step 5: Solve for x
    x = 647,376,328,211.84/1,021,721.85
  6. Step 6: Final answer
    x = 633,613.08

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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.