Home / 591,435.53-815,331.24-421,374.41

Finding the Fourth Proportional to 591,435.53, 815,331.24 and 421,374.41

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Solution

The fourth proportional to 591,435.53, 815,331.24 and 421,374.41 is: 580,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,435.53 : 815,331.24 = 421,374.41 : x
  2. Step 2: Convert to fraction form
    591,435.53/815,331.24 = 421,374.41/x
  3. Step 3: Cross multiply
    591,435.53x = 815,331.24 × 421,374.41
  4. Step 4: Simplify right side
    591,435.53x = 343,559,716,132.91
  5. Step 5: Solve for x
    x = 343,559,716,132.91/591,435.53
  6. Step 6: Final answer
    x = 580,891.24

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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.