Home / 509,442.23-764,116.49-172,444.36

Finding the Fourth Proportional to 509,442.23, 764,116.49 and 172,444.36

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Solution

The fourth proportional to 509,442.23, 764,116.49 and 172,444.36 is: 258,650.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,442.23 : 764,116.49 = 172,444.36 : x
  2. Step 2: Convert to fraction form
    509,442.23/764,116.49 = 172,444.36/x
  3. Step 3: Cross multiply
    509,442.23x = 764,116.49 × 172,444.36
  4. Step 4: Simplify right side
    509,442.23x = 131,767,579,176.42
  5. Step 5: Solve for x
    x = 131,767,579,176.42/509,442.23
  6. Step 6: Final answer
    x = 258,650.68

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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.