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Finding the Fourth Proportional to 554,953.53, 765,841.34 and 300,310.19

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Solution

The fourth proportional to 554,953.53, 765,841.34 and 300,310.19 is: 414,431.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,953.53 : 765,841.34 = 300,310.19 : x
  2. Step 2: Convert to fraction form
    554,953.53/765,841.34 = 300,310.19/x
  3. Step 3: Cross multiply
    554,953.53x = 765,841.34 × 300,310.19
  4. Step 4: Simplify right side
    554,953.53x = 229,989,954,496.05
  5. Step 5: Solve for x
    x = 229,989,954,496.05/554,953.53
  6. Step 6: Final answer
    x = 414,431.01

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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.