Home / 1,438,625-1,985,302.50-802,721

Finding the Fourth Proportional to 1,438,625, 1,985,302.50 and 802,721

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Solution

The fourth proportional to 1,438,625, 1,985,302.50 and 802,721 is: 1,107,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,625 : 1,985,302.50 = 802,721 : x
  2. Step 2: Convert to fraction form
    1,438,625/1,985,302.50 = 802,721/x
  3. Step 3: Cross multiply
    1,438,625x = 1,985,302.50 × 802,721
  4. Step 4: Simplify right side
    1,438,625x = 1,593,644,008,102.50
  5. Step 5: Solve for x
    x = 1,593,644,008,102.50/1,438,625
  6. Step 6: Final answer
    x = 1,107,754.98

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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.