Home / 1,087,809.72-1,631,253.12-518,532.24

Finding the Fourth Proportional to 1,087,809.72, 1,631,253.12 and 518,532.24

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Solution

The fourth proportional to 1,087,809.72, 1,631,253.12 and 518,532.24 is: 777,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,809.72 : 1,631,253.12 = 518,532.24 : x
  2. Step 2: Convert to fraction form
    1,087,809.72/1,631,253.12 = 518,532.24/x
  3. Step 3: Cross multiply
    1,087,809.72x = 1,631,253.12 × 518,532.24
  4. Step 4: Simplify right side
    1,087,809.72x = 845,857,334,320.59
  5. Step 5: Solve for x
    x = 845,857,334,320.59/1,087,809.72
  6. Step 6: Final answer
    x = 777,578.39

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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.