Home / 443,835.05-665,920.17-266,465.70

Finding the Fourth Proportional to 443,835.05, 665,920.17 and 266,465.70

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Solution

The fourth proportional to 443,835.05, 665,920.17 and 266,465.70 is: 399,799.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,835.05 : 665,920.17 = 266,465.70 : x
  2. Step 2: Convert to fraction form
    443,835.05/665,920.17 = 266,465.70/x
  3. Step 3: Cross multiply
    443,835.05x = 665,920.17 × 266,465.70
  4. Step 4: Simplify right side
    443,835.05x = 177,444,884,243.17
  5. Step 5: Solve for x
    x = 177,444,884,243.17/443,835.05
  6. Step 6: Final answer
    x = 399,799.17

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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.