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Finding the Fourth Proportional to 445,482.48, 666,627.42 and 385,717.15

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Solution

The fourth proportional to 445,482.48, 666,627.42 and 385,717.15 is: 577,193.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,482.48 : 666,627.42 = 385,717.15 : x
  2. Step 2: Convert to fraction form
    445,482.48/666,627.42 = 385,717.15/x
  3. Step 3: Cross multiply
    445,482.48x = 666,627.42 × 385,717.15
  4. Step 4: Simplify right side
    445,482.48x = 257,129,627,824.13
  5. Step 5: Solve for x
    x = 257,129,627,824.13/445,482.48
  6. Step 6: Final answer
    x = 577,193.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.