Home / 1,229,243.32-1,843,438.56-430,507.24

Finding the Fourth Proportional to 1,229,243.32, 1,843,438.56 and 430,507.24

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Solution

The fourth proportional to 1,229,243.32, 1,843,438.56 and 430,507.24 is: 645,611.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,243.32 : 1,843,438.56 = 430,507.24 : x
  2. Step 2: Convert to fraction form
    1,229,243.32/1,843,438.56 = 430,507.24/x
  3. Step 3: Cross multiply
    1,229,243.32x = 1,843,438.56 × 430,507.24
  4. Step 4: Simplify right side
    1,229,243.32x = 793,613,646,575.18
  5. Step 5: Solve for x
    x = 793,613,646,575.18/1,229,243.32
  6. Step 6: Final answer
    x = 645,611.52

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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.