Home / 639,647.02-882,726.66-353,185.24

Finding the Fourth Proportional to 639,647.02, 882,726.66 and 353,185.24

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Solution

The fourth proportional to 639,647.02, 882,726.66 and 353,185.24 is: 487,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,647.02 : 882,726.66 = 353,185.24 : x
  2. Step 2: Convert to fraction form
    639,647.02/882,726.66 = 353,185.24/x
  3. Step 3: Cross multiply
    639,647.02x = 882,726.66 × 353,185.24
  4. Step 4: Simplify right side
    639,647.02x = 311,766,027,266.50
  5. Step 5: Solve for x
    x = 311,766,027,266.50/639,647.02
  6. Step 6: Final answer
    x = 487,403.24

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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.