Home / 1,078,981.80-1,617,955.56-509,889.12

Finding the Fourth Proportional to 1,078,981.80, 1,617,955.56 and 509,889.12

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Solution

The fourth proportional to 1,078,981.80, 1,617,955.56 and 509,889.12 is: 764,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,981.80 : 1,617,955.56 = 509,889.12 : x
  2. Step 2: Convert to fraction form
    1,078,981.80/1,617,955.56 = 509,889.12/x
  3. Step 3: Cross multiply
    1,078,981.80x = 1,617,955.56 × 509,889.12
  4. Step 4: Simplify right side
    1,078,981.80x = 824,977,936,687.51
  5. Step 5: Solve for x
    x = 824,977,936,687.51/1,078,981.80
  6. Step 6: Final answer
    x = 764,589.30

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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.