Home / 3,109,143.76-4,663,838.52-865,477.84

Finding the Fourth Proportional to 3,109,143.76, 4,663,838.52 and 865,477.84

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Solution

The fourth proportional to 3,109,143.76, 4,663,838.52 and 865,477.84 is: 1,298,250.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109,143.76 : 4,663,838.52 = 865,477.84 : x
  2. Step 2: Convert to fraction form
    3,109,143.76/4,663,838.52 = 865,477.84/x
  3. Step 3: Cross multiply
    3,109,143.76x = 4,663,838.52 × 865,477.84
  4. Step 4: Simplify right side
    3,109,143.76x = 4,036,448,888,398.40
  5. Step 5: Solve for x
    x = 4,036,448,888,398.40/3,109,143.76
  6. Step 6: Final answer
    x = 1,298,250.97

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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.