Home / 1,384,390.92-1,910,455.90-772,537.28

Finding the Fourth Proportional to 1,384,390.92, 1,910,455.90 and 772,537.28

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Solution

The fourth proportional to 1,384,390.92, 1,910,455.90 and 772,537.28 is: 1,066,099.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,390.92 : 1,910,455.90 = 772,537.28 : x
  2. Step 2: Convert to fraction form
    1,384,390.92/1,910,455.90 = 772,537.28/x
  3. Step 3: Cross multiply
    1,384,390.92x = 1,910,455.90 × 772,537.28
  4. Step 4: Simplify right side
    1,384,390.92x = 1,475,898,404,545.95
  5. Step 5: Solve for x
    x = 1,475,898,404,545.95/1,384,390.92
  6. Step 6: Final answer
    x = 1,066,099.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.