Home / 502,117.11-692,577.72-320,748.53

Finding the Fourth Proportional to 502,117.11, 692,577.72 and 320,748.53

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Solution

The fourth proportional to 502,117.11, 692,577.72 and 320,748.53 is: 442,413.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,117.11 : 692,577.72 = 320,748.53 : x
  2. Step 2: Convert to fraction form
    502,117.11/692,577.72 = 320,748.53/x
  3. Step 3: Cross multiply
    502,117.11x = 692,577.72 × 320,748.53
  4. Step 4: Simplify right side
    502,117.11x = 222,143,282,137.86
  5. Step 5: Solve for x
    x = 222,143,282,137.86/502,117.11
  6. Step 6: Final answer
    x = 442,413.29

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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.