Home / 501,418.44-691,966.80-307,729.04

Finding the Fourth Proportional to 501,418.44, 691,966.80 and 307,729.04

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Solution

The fourth proportional to 501,418.44, 691,966.80 and 307,729.04 is: 424,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,418.44 : 691,966.80 = 307,729.04 : x
  2. Step 2: Convert to fraction form
    501,418.44/691,966.80 = 307,729.04/x
  3. Step 3: Cross multiply
    501,418.44x = 691,966.80 × 307,729.04
  4. Step 4: Simplify right side
    501,418.44x = 212,938,279,075.87
  5. Step 5: Solve for x
    x = 212,938,279,075.87/501,418.44
  6. Step 6: Final answer
    x = 424,671.82

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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.