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Finding the Fourth Proportional to 554,797, 765,625.40 and 300,153.66

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Solution

The fourth proportional to 554,797, 765,625.40 and 300,153.66 is: 414,215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,797 : 765,625.40 = 300,153.66 : x
  2. Step 2: Convert to fraction form
    554,797/765,625.40 = 300,153.66/x
  3. Step 3: Cross multiply
    554,797x = 765,625.40 × 300,153.66
  4. Step 4: Simplify right side
    554,797x = 229,805,265,998.96
  5. Step 5: Solve for x
    x = 229,805,265,998.96/554,797
  6. Step 6: Final answer
    x = 414,215.05

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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.