Home / 449,178.72-619,829.40-255,534.90

Finding the Fourth Proportional to 449,178.72, 619,829.40 and 255,534.90

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Solution

The fourth proportional to 449,178.72, 619,829.40 and 255,534.90 is: 352,616.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,178.72 : 619,829.40 = 255,534.90 : x
  2. Step 2: Convert to fraction form
    449,178.72/619,829.40 = 255,534.90/x
  3. Step 3: Cross multiply
    449,178.72x = 619,829.40 × 255,534.90
  4. Step 4: Simplify right side
    449,178.72x = 158,388,043,746.06
  5. Step 5: Solve for x
    x = 158,388,043,746.06/449,178.72
  6. Step 6: Final answer
    x = 352,616.98

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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.