Home / 448,388.56-618,780.36-247,191.76

Finding the Fourth Proportional to 448,388.56, 618,780.36 and 247,191.76

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Solution

The fourth proportional to 448,388.56, 618,780.36 and 247,191.76 is: 341,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,388.56 : 618,780.36 = 247,191.76 : x
  2. Step 2: Convert to fraction form
    448,388.56/618,780.36 = 247,191.76/x
  3. Step 3: Cross multiply
    448,388.56x = 618,780.36 × 247,191.76
  4. Step 4: Simplify right side
    448,388.56x = 152,957,406,241.83
  5. Step 5: Solve for x
    x = 152,957,406,241.83/448,388.56
  6. Step 6: Final answer
    x = 341,126.92

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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.