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Finding the Fourth Proportional to 554,453.68, 765,145.52 and 299,804.26

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Solution

The fourth proportional to 554,453.68, 765,145.52 and 299,804.26 is: 413,729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,453.68 : 765,145.52 = 299,804.26 : x
  2. Step 2: Convert to fraction form
    554,453.68/765,145.52 = 299,804.26/x
  3. Step 3: Cross multiply
    554,453.68x = 765,145.52 × 299,804.26
  4. Step 4: Simplify right side
    554,453.68x = 229,393,886,415.92
  5. Step 5: Solve for x
    x = 229,393,886,415.92/554,453.68
  6. Step 6: Final answer
    x = 413,729.58

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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.