Home / 521,820.04-782,700.08-309,933.84

Finding the Fourth Proportional to 521,820.04, 782,700.08 and 309,933.84

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Solution

The fourth proportional to 521,820.04, 782,700.08 and 309,933.84 is: 464,882.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,820.04 : 782,700.08 = 309,933.84 : x
  2. Step 2: Convert to fraction form
    521,820.04/782,700.08 = 309,933.84/x
  3. Step 3: Cross multiply
    521,820.04x = 782,700.08 × 309,933.84
  4. Step 4: Simplify right side
    521,820.04x = 242,585,241,362.71
  5. Step 5: Solve for x
    x = 242,585,241,362.71/521,820.04
  6. Step 6: Final answer
    x = 464,882.95

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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.