Home / 509,441.10-764,114.80-172,443.23

Finding the Fourth Proportional to 509,441.10, 764,114.80 and 172,443.23

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Solution

The fourth proportional to 509,441.10, 764,114.80 and 172,443.23 is: 258,648.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,441.10 : 764,114.80 = 172,443.23 : x
  2. Step 2: Convert to fraction form
    509,441.10/764,114.80 = 172,443.23/x
  3. Step 3: Cross multiply
    509,441.10x = 764,114.80 × 172,443.23
  4. Step 4: Simplify right side
    509,441.10x = 131,766,427,438.03
  5. Step 5: Solve for x
    x = 131,766,427,438.03/509,441.10
  6. Step 6: Final answer
    x = 258,648.99

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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.