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Finding the Fourth Proportional to 613,994.90, 847,339.11 and 342,062.64

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Solution

The fourth proportional to 613,994.90, 847,339.11 and 342,062.64 is: 472,061.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,994.90 : 847,339.11 = 342,062.64 : x
  2. Step 2: Convert to fraction form
    613,994.90/847,339.11 = 342,062.64/x
  3. Step 3: Cross multiply
    613,994.90x = 847,339.11 × 342,062.64
  4. Step 4: Simplify right side
    613,994.90x = 289,843,052,941.85
  5. Step 5: Solve for x
    x = 289,843,052,941.85/613,994.90
  6. Step 6: Final answer
    x = 472,061.01

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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.