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Finding the Fourth Proportional to 674,550.10, 930,891.36 and 368,639.43

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Solution

The fourth proportional to 674,550.10, 930,891.36 and 368,639.43 is: 508,729.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,550.10 : 930,891.36 = 368,639.43 : x
  2. Step 2: Convert to fraction form
    674,550.10/930,891.36 = 368,639.43/x
  3. Step 3: Cross multiply
    674,550.10x = 930,891.36 × 368,639.43
  4. Step 4: Simplify right side
    674,550.10x = 343,163,260,342.33
  5. Step 5: Solve for x
    x = 343,163,260,342.33/674,550.10
  6. Step 6: Final answer
    x = 508,729.09

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1.5x scale

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.