Home / 1,087,719.03-1,631,018.30-488,166.21

Finding the Fourth Proportional to 1,087,719.03, 1,631,018.30 and 488,166.21

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Solution

The fourth proportional to 1,087,719.03, 1,631,018.30 and 488,166.21 is: 731,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,719.03 : 1,631,018.30 = 488,166.21 : x
  2. Step 2: Convert to fraction form
    1,087,719.03/1,631,018.30 = 488,166.21/x
  3. Step 3: Cross multiply
    1,087,719.03x = 1,631,018.30 × 488,166.21
  4. Step 4: Simplify right side
    1,087,719.03x = 796,208,019,510.81
  5. Step 5: Solve for x
    x = 796,208,019,510.81/1,087,719.03
  6. Step 6: Final answer
    x = 731,997.88

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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.