Home / 677,364.27-1,015,916.87-340,311.53

Finding the Fourth Proportional to 677,364.27, 1,015,916.87 and 340,311.53

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Solution

The fourth proportional to 677,364.27, 1,015,916.87 and 340,311.53 is: 510,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,364.27 : 1,015,916.87 = 340,311.53 : x
  2. Step 2: Convert to fraction form
    677,364.27/1,015,916.87 = 340,311.53/x
  3. Step 3: Cross multiply
    677,364.27x = 1,015,916.87 × 340,311.53
  4. Step 4: Simplify right side
    677,364.27x = 345,728,217,601.37
  5. Step 5: Solve for x
    x = 345,728,217,601.37/677,364.27
  6. Step 6: Final answer
    x = 510,402.21

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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.