Home / 1,087,890.68-1,631,834.21-289,172.22

Finding the Fourth Proportional to 1,087,890.68, 1,631,834.21 and 289,172.22

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Solution

The fourth proportional to 1,087,890.68, 1,631,834.21 and 289,172.22 is: 433,757.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,890.68 : 1,631,834.21 = 289,172.22 : x
  2. Step 2: Convert to fraction form
    1,087,890.68/1,631,834.21 = 289,172.22/x
  3. Step 3: Cross multiply
    1,087,890.68x = 1,631,834.21 × 289,172.22
  4. Step 4: Simplify right side
    1,087,890.68x = 471,881,121,900.58
  5. Step 5: Solve for x
    x = 471,881,121,900.58/1,087,890.68
  6. Step 6: Final answer
    x = 433,757.85

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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.