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Finding the Fourth Proportional to 366,920.90, 512,639.50 and 366,920.90

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Solution

The fourth proportional to 366,920.90, 512,639.50 and 366,920.90 is: 512,639.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,920.90 : 512,639.50 = 366,920.90 : x
  2. Step 2: Convert to fraction form
    366,920.90/512,639.50 = 366,920.90/x
  3. Step 3: Cross multiply
    366,920.90x = 512,639.50 × 366,920.90
  4. Step 4: Simplify right side
    366,920.90x = 188,098,146,715.55
  5. Step 5: Solve for x
    x = 188,098,146,715.55/366,920.90
  6. Step 6: Final answer
    x = 512,639.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.