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Finding the Fourth Proportional to 554,750.37, 765,011.52 and 336,990.78

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Solution

The fourth proportional to 554,750.37, 765,011.52 and 336,990.78 is: 464,716.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,750.37 : 765,011.52 = 336,990.78 : x
  2. Step 2: Convert to fraction form
    554,750.37/765,011.52 = 336,990.78/x
  3. Step 3: Cross multiply
    554,750.37x = 765,011.52 × 336,990.78
  4. Step 4: Simplify right side
    554,750.37x = 257,801,828,833.79
  5. Step 5: Solve for x
    x = 257,801,828,833.79/554,750.37
  6. Step 6: Final answer
    x = 464,716.82

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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.