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Finding the Fourth Proportional to 608,320.80, 839,451.60 and 340,048.80

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Solution

The fourth proportional to 608,320.80, 839,451.60 and 340,048.80 is: 469,249.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,320.80 : 839,451.60 = 340,048.80 : x
  2. Step 2: Convert to fraction form
    608,320.80/839,451.60 = 340,048.80/x
  3. Step 3: Cross multiply
    608,320.80x = 839,451.60 × 340,048.80
  4. Step 4: Simplify right side
    608,320.80x = 285,454,509,238.08
  5. Step 5: Solve for x
    x = 285,454,509,238.08/608,320.80
  6. Step 6: Final answer
    x = 469,249.96

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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.