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Finding the Fourth Proportional to 555,473.07, 766,551.15 and 300,824.19

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Solution

The fourth proportional to 555,473.07, 766,551.15 and 300,824.19 is: 415,136.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,473.07 : 766,551.15 = 300,824.19 : x
  2. Step 2: Convert to fraction form
    555,473.07/766,551.15 = 300,824.19/x
  3. Step 3: Cross multiply
    555,473.07x = 766,551.15 × 300,824.19
  4. Step 4: Simplify right side
    555,473.07x = 230,597,128,792.32
  5. Step 5: Solve for x
    x = 230,597,128,792.32/555,473.07
  6. Step 6: Final answer
    x = 415,136.47

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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.