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Finding the Fourth Proportional to 879,088.92, 1,318,684.74 and 339,348

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Solution

The fourth proportional to 879,088.92, 1,318,684.74 and 339,348 is: 509,041.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,088.92 : 1,318,684.74 = 339,348 : x
  2. Step 2: Convert to fraction form
    879,088.92/1,318,684.74 = 339,348/x
  3. Step 3: Cross multiply
    879,088.92x = 1,318,684.74 × 339,348
  4. Step 4: Simplify right side
    879,088.92x = 447,493,029,149.52
  5. Step 5: Solve for x
    x = 447,493,029,149.52/879,088.92
  6. Step 6: Final answer
    x = 509,041.83

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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.