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Finding the Fourth Proportional to 448,850, 619,421.64 and 247,641.68

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Solution

The fourth proportional to 448,850, 619,421.64 and 247,641.68 is: 341,750.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,850 : 619,421.64 = 247,641.68 : x
  2. Step 2: Convert to fraction form
    448,850/619,421.64 = 247,641.68/x
  3. Step 3: Cross multiply
    448,850x = 619,421.64 × 247,641.68
  4. Step 4: Simplify right side
    448,850x = 153,394,615,557.96
  5. Step 5: Solve for x
    x = 153,394,615,557.96/448,850
  6. Step 6: Final answer
    x = 341,750.29

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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.