Home / 509,664.48-764,201.40-172,592.64

Finding the Fourth Proportional to 509,664.48, 764,201.40 and 172,592.64

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Solution

The fourth proportional to 509,664.48, 764,201.40 and 172,592.64 is: 258,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,664.48 : 764,201.40 = 172,592.64 : x
  2. Step 2: Convert to fraction form
    509,664.48/764,201.40 = 172,592.64/x
  3. Step 3: Cross multiply
    509,664.48x = 764,201.40 × 172,592.64
  4. Step 4: Simplify right side
    509,664.48x = 131,895,537,117.70
  5. Step 5: Solve for x
    x = 131,895,537,117.70/509,664.48
  6. Step 6: Final answer
    x = 258,788.95

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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.