Home / 1,087,800.78-1,631,455.11-413,641.65

Finding the Fourth Proportional to 1,087,800.78, 1,631,455.11 and 413,641.65

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Solution

The fourth proportional to 1,087,800.78, 1,631,455.11 and 413,641.65 is: 620,368.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,800.78 : 1,631,455.11 = 413,641.65 : x
  2. Step 2: Convert to fraction form
    1,087,800.78/1,631,455.11 = 413,641.65/x
  3. Step 3: Cross multiply
    1,087,800.78x = 1,631,455.11 × 413,641.65
  4. Step 4: Simplify right side
    1,087,800.78x = 674,837,783,601.33
  5. Step 5: Solve for x
    x = 674,837,783,601.33/1,087,800.78
  6. Step 6: Final answer
    x = 620,368.91

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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.