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Finding the Fourth Proportional to 366,948.40, 512,678 and 366,948.40

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Solution

The fourth proportional to 366,948.40, 512,678 and 366,948.40 is: 512,678

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,948.40 : 512,678 = 366,948.40 : x
  2. Step 2: Convert to fraction form
    366,948.40/512,678 = 366,948.40/x
  3. Step 3: Cross multiply
    366,948.40x = 512,678 × 366,948.40
  4. Step 4: Simplify right side
    366,948.40x = 188,126,371,815.20
  5. Step 5: Solve for x
    x = 188,126,371,815.20/366,948.40
  6. Step 6: Final answer
    x = 512,678

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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.