Home / 509,929.08-764,981.10-273,208.20

Finding the Fourth Proportional to 509,929.08, 764,981.10 and 273,208.20

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Solution

The fourth proportional to 509,929.08, 764,981.10 and 273,208.20 is: 409,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,929.08 : 764,981.10 = 273,208.20 : x
  2. Step 2: Convert to fraction form
    509,929.08/764,981.10 = 273,208.20/x
  3. Step 3: Cross multiply
    509,929.08x = 764,981.10 × 273,208.20
  4. Step 4: Simplify right side
    509,929.08x = 208,999,109,365.02
  5. Step 5: Solve for x
    x = 208,999,109,365.02/509,929.08
  6. Step 6: Final answer
    x = 409,859.17

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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.