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Finding the Fourth Proportional to 656,894.80, 985,374.60 and 341,966.80

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Solution

The fourth proportional to 656,894.80, 985,374.60 and 341,966.80 is: 512,967.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,894.80 : 985,374.60 = 341,966.80 : x
  2. Step 2: Convert to fraction form
    656,894.80/985,374.60 = 341,966.80/x
  3. Step 3: Cross multiply
    656,894.80x = 985,374.60 × 341,966.80
  4. Step 4: Simplify right side
    656,894.80x = 336,965,398,763.28
  5. Step 5: Solve for x
    x = 336,965,398,763.28/656,894.80
  6. Step 6: Final answer
    x = 512,967.07

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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.