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Finding the Fourth Proportional to 662,352, 993,621.44 and 212,922.24

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Solution

The fourth proportional to 662,352, 993,621.44 and 212,922.24 is: 319,413.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,352 : 993,621.44 = 212,922.24 : x
  2. Step 2: Convert to fraction form
    662,352/993,621.44 = 212,922.24/x
  3. Step 3: Cross multiply
    662,352x = 993,621.44 × 212,922.24
  4. Step 4: Simplify right side
    662,352x = 211,564,102,716.83
  5. Step 5: Solve for x
    x = 211,564,102,716.83/662,352
  6. Step 6: Final answer
    x = 319,413.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.