Home / 639,646.02-882,725.28-353,184.24

Finding the Fourth Proportional to 639,646.02, 882,725.28 and 353,184.24

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Solution

The fourth proportional to 639,646.02, 882,725.28 and 353,184.24 is: 487,401.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,646.02 : 882,725.28 = 353,184.24 : x
  2. Step 2: Convert to fraction form
    639,646.02/882,725.28 = 353,184.24/x
  3. Step 3: Cross multiply
    639,646.02x = 882,725.28 × 353,184.24
  4. Step 4: Simplify right side
    639,646.02x = 311,764,657,145.59
  5. Step 5: Solve for x
    x = 311,764,657,145.59/639,646.02
  6. Step 6: Final answer
    x = 487,401.86

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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.