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Finding the Fourth Proportional to 554,809.07, 765,592.90 and 339,919.91

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Solution

The fourth proportional to 554,809.07, 765,592.90 and 339,919.91 is: 469,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,809.07 : 765,592.90 = 339,919.91 : x
  2. Step 2: Convert to fraction form
    554,809.07/765,592.90 = 339,919.91/x
  3. Step 3: Cross multiply
    554,809.07x = 765,592.90 × 339,919.91
  4. Step 4: Simplify right side
    554,809.07x = 260,240,274,076.36
  5. Step 5: Solve for x
    x = 260,240,274,076.36/554,809.07
  6. Step 6: Final answer
    x = 469,062.76

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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.