Home / 783,981.36-1,082,358.06-493,841.64

Finding the Fourth Proportional to 783,981.36, 1,082,358.06 and 493,841.64

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Solution

The fourth proportional to 783,981.36, 1,082,358.06 and 493,841.64 is: 681,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,981.36 : 1,082,358.06 = 493,841.64 : x
  2. Step 2: Convert to fraction form
    783,981.36/1,082,358.06 = 493,841.64/x
  3. Step 3: Cross multiply
    783,981.36x = 1,082,358.06 × 493,841.64
  4. Step 4: Simplify right side
    783,981.36x = 534,513,479,417.62
  5. Step 5: Solve for x
    x = 534,513,479,417.62/783,981.36
  6. Step 6: Final answer
    x = 681,793.61

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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.