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Finding the Fourth Proportional to 385,008.80, 576,419.70 and 364,062.20

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Solution

The fourth proportional to 385,008.80, 576,419.70 and 364,062.20 is: 545,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,008.80 : 576,419.70 = 364,062.20 : x
  2. Step 2: Convert to fraction form
    385,008.80/576,419.70 = 364,062.20/x
  3. Step 3: Cross multiply
    385,008.80x = 576,419.70 × 364,062.20
  4. Step 4: Simplify right side
    385,008.80x = 209,852,624,105.34
  5. Step 5: Solve for x
    x = 209,852,624,105.34/385,008.80
  6. Step 6: Final answer
    x = 545,059.29

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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.