Home / 1,192,285.92-1,644,521.76-809,648.40

Finding the Fourth Proportional to 1,192,285.92, 1,644,521.76 and 809,648.40

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Solution

The fourth proportional to 1,192,285.92, 1,644,521.76 and 809,648.40 is: 1,116,749.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,285.92 : 1,644,521.76 = 809,648.40 : x
  2. Step 2: Convert to fraction form
    1,192,285.92/1,644,521.76 = 809,648.40/x
  3. Step 3: Cross multiply
    1,192,285.92x = 1,644,521.76 × 809,648.40
  4. Step 4: Simplify right side
    1,192,285.92x = 1,331,484,411,749.18
  5. Step 5: Solve for x
    x = 1,331,484,411,749.18/1,192,285.92
  6. Step 6: Final answer
    x = 1,116,749.25

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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.