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Finding the Fourth Proportional to 551,608.84, 761,128.14 and 325,299.16

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Solution

The fourth proportional to 551,608.84, 761,128.14 and 325,299.16 is: 448,858.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,608.84 : 761,128.14 = 325,299.16 : x
  2. Step 2: Convert to fraction form
    551,608.84/761,128.14 = 325,299.16/x
  3. Step 3: Cross multiply
    551,608.84x = 761,128.14 × 325,299.16
  4. Step 4: Simplify right side
    551,608.84x = 247,594,344,594.36
  5. Step 5: Solve for x
    x = 247,594,344,594.36/551,608.84
  6. Step 6: Final answer
    x = 448,858.55

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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.