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Finding the Fourth Proportional to 608,626.57, 839,929.39 and 336,689.78

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Solution

The fourth proportional to 608,626.57, 839,929.39 and 336,689.78 is: 464,645.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,626.57 : 839,929.39 = 336,689.78 : x
  2. Step 2: Convert to fraction form
    608,626.57/839,929.39 = 336,689.78/x
  3. Step 3: Cross multiply
    608,626.57x = 839,929.39 × 336,689.78
  4. Step 4: Simplify right side
    608,626.57x = 282,795,641,534.63
  5. Step 5: Solve for x
    x = 282,795,641,534.63/608,626.57
  6. Step 6: Final answer
    x = 464,645.57

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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.