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Finding the Fourth Proportional to 615,907.20, 923,860.80 and 446,633.40

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Solution

The fourth proportional to 615,907.20, 923,860.80 and 446,633.40 is: 669,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,907.20 : 923,860.80 = 446,633.40 : x
  2. Step 2: Convert to fraction form
    615,907.20/923,860.80 = 446,633.40/x
  3. Step 3: Cross multiply
    615,907.20x = 923,860.80 × 446,633.40
  4. Step 4: Simplify right side
    615,907.20x = 412,627,090,230.72
  5. Step 5: Solve for x
    x = 412,627,090,230.72/615,907.20
  6. Step 6: Final answer
    x = 669,950.10

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Similar ratio
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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.