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Finding the Fourth Proportional to 611,798.88, 844,252.32 and 339,884.16

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Solution

The fourth proportional to 611,798.88, 844,252.32 and 339,884.16 is: 469,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,798.88 : 844,252.32 = 339,884.16 : x
  2. Step 2: Convert to fraction form
    611,798.88/844,252.32 = 339,884.16/x
  3. Step 3: Cross multiply
    611,798.88x = 844,252.32 × 339,884.16
  4. Step 4: Simplify right side
    611,798.88x = 286,947,990,611.25
  5. Step 5: Solve for x
    x = 286,947,990,611.25/611,798.88
  6. Step 6: Final answer
    x = 469,023.40

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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.