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Finding the Fourth Proportional to 554,986.46, 765,883.65 and 300,337.66

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Solution

The fourth proportional to 554,986.46, 765,883.65 and 300,337.66 is: 414,467.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,986.46 : 765,883.65 = 300,337.66 : x
  2. Step 2: Convert to fraction form
    554,986.46/765,883.65 = 300,337.66/x
  3. Step 3: Cross multiply
    554,986.46x = 765,883.65 × 300,337.66
  4. Step 4: Simplify right side
    554,986.46x = 230,023,703,273.26
  5. Step 5: Solve for x
    x = 230,023,703,273.26/554,986.46
  6. Step 6: Final answer
    x = 414,467.23

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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.