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Finding the Fourth Proportional to 448,892.80, 619,471.36 and 247,688.64

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Solution

The fourth proportional to 448,892.80, 619,471.36 and 247,688.64 is: 341,809.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,892.80 : 619,471.36 = 247,688.64 : x
  2. Step 2: Convert to fraction form
    448,892.80/619,471.36 = 247,688.64/x
  3. Step 3: Cross multiply
    448,892.80x = 619,471.36 × 247,688.64
  4. Step 4: Simplify right side
    448,892.80x = 153,436,018,677.35
  5. Step 5: Solve for x
    x = 153,436,018,677.35/448,892.80
  6. Step 6: Final answer
    x = 341,809.93

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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.