Home / 669,447.28-1,004,340.84-309,877.50

Finding the Fourth Proportional to 669,447.28, 1,004,340.84 and 309,877.50

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Solution

The fourth proportional to 669,447.28, 1,004,340.84 and 309,877.50 is: 464,894.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,447.28 : 1,004,340.84 = 309,877.50 : x
  2. Step 2: Convert to fraction form
    669,447.28/1,004,340.84 = 309,877.50/x
  3. Step 3: Cross multiply
    669,447.28x = 1,004,340.84 × 309,877.50
  4. Step 4: Simplify right side
    669,447.28x = 311,222,631,326.51
  5. Step 5: Solve for x
    x = 311,222,631,326.51/669,447.28
  6. Step 6: Final answer
    x = 464,894.91

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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.