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Finding the Fourth Proportional to 554,797.13, 765,625.59 and 300,153.78

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Solution

The fourth proportional to 554,797.13, 765,625.59 and 300,153.78 is: 414,215.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,797.13 : 765,625.59 = 300,153.78 : x
  2. Step 2: Convert to fraction form
    554,797.13/765,625.59 = 300,153.78/x
  3. Step 3: Cross multiply
    554,797.13x = 765,625.59 × 300,153.78
  4. Step 4: Simplify right side
    554,797.13x = 229,805,414,903.23
  5. Step 5: Solve for x
    x = 229,805,414,903.23/554,797.13
  6. Step 6: Final answer
    x = 414,215.22

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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.