Home / 1,087,725.78-1,631,028.42-488,172.96

Finding the Fourth Proportional to 1,087,725.78, 1,631,028.42 and 488,172.96

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Solution

The fourth proportional to 1,087,725.78, 1,631,028.42 and 488,172.96 is: 732,008.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,725.78 : 1,631,028.42 = 488,172.96 : x
  2. Step 2: Convert to fraction form
    1,087,725.78/1,631,028.42 = 488,172.96/x
  3. Step 3: Cross multiply
    1,087,725.78x = 1,631,028.42 × 488,172.96
  4. Step 4: Simplify right side
    1,087,725.78x = 796,223,971,635.52
  5. Step 5: Solve for x
    x = 796,223,971,635.52/1,087,725.78
  6. Step 6: Final answer
    x = 732,008.00

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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.