Home / 399,109.48-598,690.14-118,603.24

Finding the Fourth Proportional to 399,109.48, 598,690.14 and 118,603.24

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Solution

The fourth proportional to 399,109.48, 598,690.14 and 118,603.24 is: 177,912.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,109.48 : 598,690.14 = 118,603.24 : x
  2. Step 2: Convert to fraction form
    399,109.48/598,690.14 = 118,603.24/x
  3. Step 3: Cross multiply
    399,109.48x = 598,690.14 × 118,603.24
  4. Step 4: Simplify right side
    399,109.48x = 71,006,590,360.05
  5. Step 5: Solve for x
    x = 71,006,590,360.05/399,109.48
  6. Step 6: Final answer
    x = 177,912.56

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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.