Home / 639,413.66-882,390.90-352,933.82

Finding the Fourth Proportional to 639,413.66, 882,390.90 and 352,933.82

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Solution

The fourth proportional to 639,413.66, 882,390.90 and 352,933.82 is: 487,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,413.66 : 882,390.90 = 352,933.82 : x
  2. Step 2: Convert to fraction form
    639,413.66/882,390.90 = 352,933.82/x
  3. Step 3: Cross multiply
    639,413.66x = 882,390.90 × 352,933.82
  4. Step 4: Simplify right side
    639,413.66x = 311,425,591,070.24
  5. Step 5: Solve for x
    x = 311,425,591,070.24/639,413.66
  6. Step 6: Final answer
    x = 487,048.70

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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.