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Finding the Fourth Proportional to 554,878.80, 765,730.80 and 300,228.84

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Solution

The fourth proportional to 554,878.80, 765,730.80 and 300,228.84 is: 414,314.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,878.80 : 765,730.80 = 300,228.84 : x
  2. Step 2: Convert to fraction form
    554,878.80/765,730.80 = 300,228.84/x
  3. Step 3: Cross multiply
    554,878.80x = 765,730.80 × 300,228.84
  4. Step 4: Simplify right side
    554,878.80x = 229,894,469,836.27
  5. Step 5: Solve for x
    x = 229,894,469,836.27/554,878.80
  6. Step 6: Final answer
    x = 414,314.75

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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.