Home / 806,349.45-1,112,762.43-443,773.20

Finding the Fourth Proportional to 806,349.45, 1,112,762.43 and 443,773.20

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Solution

The fourth proportional to 806,349.45, 1,112,762.43 and 443,773.20 is: 612,407.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,349.45 : 1,112,762.43 = 443,773.20 : x
  2. Step 2: Convert to fraction form
    806,349.45/1,112,762.43 = 443,773.20/x
  3. Step 3: Cross multiply
    806,349.45x = 1,112,762.43 × 443,773.20
  4. Step 4: Simplify right side
    806,349.45x = 493,814,144,400.88
  5. Step 5: Solve for x
    x = 493,814,144,400.88/806,349.45
  6. Step 6: Final answer
    x = 612,407.12

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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.