Home / 669,385.16-1,004,112.82-509,711.54

Finding the Fourth Proportional to 669,385.16, 1,004,112.82 and 509,711.54

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Solution

The fourth proportional to 669,385.16, 1,004,112.82 and 509,711.54 is: 764,594.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,385.16 : 1,004,112.82 = 509,711.54 : x
  2. Step 2: Convert to fraction form
    669,385.16/1,004,112.82 = 509,711.54/x
  3. Step 3: Cross multiply
    669,385.16x = 1,004,112.82 × 509,711.54
  4. Step 4: Simplify right side
    669,385.16x = 511,807,885,282.15
  5. Step 5: Solve for x
    x = 511,807,885,282.15/669,385.16
  6. Step 6: Final answer
    x = 764,594.01

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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.