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Finding the Fourth Proportional to 615,892.20, 923,838.30 and 446,618.40

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Solution

The fourth proportional to 615,892.20, 923,838.30 and 446,618.40 is: 669,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,892.20 : 923,838.30 = 446,618.40 : x
  2. Step 2: Convert to fraction form
    615,892.20/923,838.30 = 446,618.40/x
  3. Step 3: Cross multiply
    615,892.20x = 923,838.30 × 446,618.40
  4. Step 4: Simplify right side
    615,892.20x = 412,603,183,404.72
  5. Step 5: Solve for x
    x = 412,603,183,404.72/615,892.20
  6. Step 6: Final answer
    x = 669,927.60

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1.5x scale

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.