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Finding the Fourth Proportional to 456,643.93, 630,422 and 275,401.96

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Solution

The fourth proportional to 456,643.93, 630,422 and 275,401.96 is: 380,207.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,643.93 : 630,422 = 275,401.96 : x
  2. Step 2: Convert to fraction form
    456,643.93/630,422 = 275,401.96/x
  3. Step 3: Cross multiply
    456,643.93x = 630,422 × 275,401.96
  4. Step 4: Simplify right side
    456,643.93x = 173,619,454,427.12
  5. Step 5: Solve for x
    x = 173,619,454,427.12/456,643.93
  6. Step 6: Final answer
    x = 380,207.52

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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.