Home / 591,501.64-815,422.62-421,440.52

Finding the Fourth Proportional to 591,501.64, 815,422.62 and 421,440.52

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Solution

The fourth proportional to 591,501.64, 815,422.62 and 421,440.52 is: 580,982.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,501.64 : 815,422.62 = 421,440.52 : x
  2. Step 2: Convert to fraction form
    591,501.64/815,422.62 = 421,440.52/x
  3. Step 3: Cross multiply
    591,501.64x = 815,422.62 × 421,440.52
  4. Step 4: Simplify right side
    591,501.64x = 343,652,132,992.56
  5. Step 5: Solve for x
    x = 343,652,132,992.56/591,501.64
  6. Step 6: Final answer
    x = 580,982.55

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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.