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Finding the Fourth Proportional to 449,013.44, 619,637.28 and 247,808

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Solution

The fourth proportional to 449,013.44, 619,637.28 and 247,808 is: 341,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,013.44 : 619,637.28 = 247,808 : x
  2. Step 2: Convert to fraction form
    449,013.44/619,637.28 = 247,808/x
  3. Step 3: Cross multiply
    449,013.44x = 619,637.28 × 247,808
  4. Step 4: Simplify right side
    449,013.44x = 153,551,075,082.24
  5. Step 5: Solve for x
    x = 153,551,075,082.24/449,013.44
  6. Step 6: Final answer
    x = 341,974.34

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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.