Home / 639,465.42-882,462.32-352,985.52

Finding the Fourth Proportional to 639,465.42, 882,462.32 and 352,985.52

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Solution

The fourth proportional to 639,465.42, 882,462.32 and 352,985.52 is: 487,120.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,465.42 : 882,462.32 = 352,985.52 : x
  2. Step 2: Convert to fraction form
    639,465.42/882,462.32 = 352,985.52/x
  3. Step 3: Cross multiply
    639,465.42x = 882,462.32 × 352,985.52
  4. Step 4: Simplify right side
    639,465.42x = 311,496,420,905.61
  5. Step 5: Solve for x
    x = 311,496,420,905.61/639,465.42
  6. Step 6: Final answer
    x = 487,120.04

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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.