Home / 501,419.44-691,968.18-307,730.04

Finding the Fourth Proportional to 501,419.44, 691,968.18 and 307,730.04

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Solution

The fourth proportional to 501,419.44, 691,968.18 and 307,730.04 is: 424,673.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,419.44 : 691,968.18 = 307,730.04 : x
  2. Step 2: Convert to fraction form
    501,419.44/691,968.18 = 307,730.04/x
  3. Step 3: Cross multiply
    501,419.44x = 691,968.18 × 307,730.04
  4. Step 4: Simplify right side
    501,419.44x = 212,939,395,710.13
  5. Step 5: Solve for x
    x = 212,939,395,710.13/501,419.44
  6. Step 6: Final answer
    x = 424,673.20

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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.