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Finding the Fourth Proportional to 449,700.96, 620,562.96 and 248,484

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Solution

The fourth proportional to 449,700.96, 620,562.96 and 248,484 is: 342,894.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,700.96 : 620,562.96 = 248,484 : x
  2. Step 2: Convert to fraction form
    449,700.96/620,562.96 = 248,484/x
  3. Step 3: Cross multiply
    449,700.96x = 620,562.96 × 248,484
  4. Step 4: Simplify right side
    449,700.96x = 154,199,966,552.64
  5. Step 5: Solve for x
    x = 154,199,966,552.64/449,700.96
  6. Step 6: Final answer
    x = 342,894.46

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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.