Home / 886,280.51-1,329,141.92-287,102.65

Finding the Fourth Proportional to 886,280.51, 1,329,141.92 and 287,102.65

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Solution

The fourth proportional to 886,280.51, 1,329,141.92 and 287,102.65 is: 430,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,280.51 : 1,329,141.92 = 287,102.65 : x
  2. Step 2: Convert to fraction form
    886,280.51/1,329,141.92 = 287,102.65/x
  3. Step 3: Cross multiply
    886,280.51x = 1,329,141.92 × 287,102.65
  4. Step 4: Simplify right side
    886,280.51x = 381,600,170,948.78
  5. Step 5: Solve for x
    x = 381,600,170,948.78/886,280.51
  6. Step 6: Final answer
    x = 430,563.65

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Double scale
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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.