Home / 1,078,976.79-1,617,948.81-509,882.94

Finding the Fourth Proportional to 1,078,976.79, 1,617,948.81 and 509,882.94

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Solution

The fourth proportional to 1,078,976.79, 1,617,948.81 and 509,882.94 is: 764,580.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,976.79 : 1,617,948.81 = 509,882.94 : x
  2. Step 2: Convert to fraction form
    1,078,976.79/1,617,948.81 = 509,882.94/x
  3. Step 3: Cross multiply
    1,078,976.79x = 1,617,948.81 × 509,882.94
  4. Step 4: Simplify right side
    1,078,976.79x = 824,964,496,012.30
  5. Step 5: Solve for x
    x = 824,964,496,012.30/1,078,976.79
  6. Step 6: Final answer
    x = 764,580.39

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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.