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Finding the Fourth Proportional to 554,984.25, 765,883.80 and 300,340.91

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Solution

The fourth proportional to 554,984.25, 765,883.80 and 300,340.91 is: 414,473.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,984.25 : 765,883.80 = 300,340.91 : x
  2. Step 2: Convert to fraction form
    554,984.25/765,883.80 = 300,340.91/x
  3. Step 3: Cross multiply
    554,984.25x = 765,883.80 × 300,340.91
  4. Step 4: Simplify right side
    554,984.25x = 230,026,233,616.84
  5. Step 5: Solve for x
    x = 230,026,233,616.84/554,984.25
  6. Step 6: Final answer
    x = 414,473.44

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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.