Home / 492,406.10-738,633.45-256,210.10

Finding the Fourth Proportional to 492,406.10, 738,633.45 and 256,210.10

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Solution

The fourth proportional to 492,406.10, 738,633.45 and 256,210.10 is: 384,327.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,406.10 : 738,633.45 = 256,210.10 : x
  2. Step 2: Convert to fraction form
    492,406.10/738,633.45 = 256,210.10/x
  3. Step 3: Cross multiply
    492,406.10x = 738,633.45 × 256,210.10
  4. Step 4: Simplify right side
    492,406.10x = 189,245,350,087.85
  5. Step 5: Solve for x
    x = 189,245,350,087.85/492,406.10
  6. Step 6: Final answer
    x = 384,327.79

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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.