Home / 639,656.02-882,739.08-353,194.24

Finding the Fourth Proportional to 639,656.02, 882,739.08 and 353,194.24

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Solution

The fourth proportional to 639,656.02, 882,739.08 and 353,194.24 is: 487,415.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,656.02 : 882,739.08 = 353,194.24 : x
  2. Step 2: Convert to fraction form
    639,656.02/882,739.08 = 353,194.24/x
  3. Step 3: Cross multiply
    639,656.02x = 882,739.08 × 353,194.24
  4. Step 4: Simplify right side
    639,656.02x = 311,778,358,478.90
  5. Step 5: Solve for x
    x = 311,778,358,478.90/639,656.02
  6. Step 6: Final answer
    x = 487,415.66

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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.