Home / 909,120.92-1,363,672.31-348,155.42

Finding the Fourth Proportional to 909,120.92, 1,363,672.31 and 348,155.42

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Solution

The fourth proportional to 909,120.92, 1,363,672.31 and 348,155.42 is: 522,229.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,120.92 : 1,363,672.31 = 348,155.42 : x
  2. Step 2: Convert to fraction form
    909,120.92/1,363,672.31 = 348,155.42/x
  3. Step 3: Cross multiply
    909,120.92x = 1,363,672.31 × 348,155.42
  4. Step 4: Simplify right side
    909,120.92x = 474,769,897,271.28
  5. Step 5: Solve for x
    x = 474,769,897,271.28/909,120.92
  6. Step 6: Final answer
    x = 522,229.65

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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.