Home / 1,431,888.89-2,147,832.50-421,019.24

Finding the Fourth Proportional to 1,431,888.89, 2,147,832.50 and 421,019.24

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Solution

The fourth proportional to 1,431,888.89, 2,147,832.50 and 421,019.24 is: 631,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,888.89 : 2,147,832.50 = 421,019.24 : x
  2. Step 2: Convert to fraction form
    1,431,888.89/2,147,832.50 = 421,019.24/x
  3. Step 3: Cross multiply
    1,431,888.89x = 2,147,832.50 × 421,019.24
  4. Step 4: Simplify right side
    1,431,888.89x = 904,278,793,953.04
  5. Step 5: Solve for x
    x = 904,278,793,953.04/1,431,888.89
  6. Step 6: Final answer
    x = 631,528.61

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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.