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Finding the Fourth Proportional to 554,759.78, 765,590.20 and 325,285.16

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Solution

The fourth proportional to 554,759.78, 765,590.20 and 325,285.16 is: 448,906.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,759.78 : 765,590.20 = 325,285.16 : x
  2. Step 2: Convert to fraction form
    554,759.78/765,590.20 = 325,285.16/x
  3. Step 3: Cross multiply
    554,759.78x = 765,590.20 × 325,285.16
  4. Step 4: Simplify right side
    554,759.78x = 249,035,126,060.27
  5. Step 5: Solve for x
    x = 249,035,126,060.27/554,759.78
  6. Step 6: Final answer
    x = 448,906.24

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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.