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Finding the Fourth Proportional to 554,936.04, 765,813.76 and 300,287.22

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Solution

The fourth proportional to 554,936.04, 765,813.76 and 300,287.22 is: 414,397.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,936.04 : 765,813.76 = 300,287.22 : x
  2. Step 2: Convert to fraction form
    554,936.04/765,813.76 = 300,287.22/x
  3. Step 3: Cross multiply
    554,936.04x = 765,813.76 × 300,287.22
  4. Step 4: Simplify right side
    554,936.04x = 229,964,085,028.15
  5. Step 5: Solve for x
    x = 229,964,085,028.15/554,936.04
  6. Step 6: Final answer
    x = 414,397.46

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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.