Home / 1,087,635.60-1,631,453.40-987,908.40

Finding the Fourth Proportional to 1,087,635.60, 1,631,453.40 and 987,908.40

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Solution

The fourth proportional to 1,087,635.60, 1,631,453.40 and 987,908.40 is: 1,481,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,635.60 : 1,631,453.40 = 987,908.40 : x
  2. Step 2: Convert to fraction form
    1,087,635.60/1,631,453.40 = 987,908.40/x
  3. Step 3: Cross multiply
    1,087,635.60x = 1,631,453.40 × 987,908.40
  4. Step 4: Simplify right side
    1,087,635.60x = 1,611,726,518,068.56
  5. Step 5: Solve for x
    x = 1,611,726,518,068.56/1,087,635.60
  6. Step 6: Final answer
    x = 1,481,862.60

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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.