Home / 989,119.86-1,483,472.19-278,981.82

Finding the Fourth Proportional to 989,119.86, 1,483,472.19 and 278,981.82

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Solution

The fourth proportional to 989,119.86, 1,483,472.19 and 278,981.82 is: 418,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,119.86 : 1,483,472.19 = 278,981.82 : x
  2. Step 2: Convert to fraction form
    989,119.86/1,483,472.19 = 278,981.82/x
  3. Step 3: Cross multiply
    989,119.86x = 1,483,472.19 × 278,981.82
  4. Step 4: Simplify right side
    989,119.86x = 413,861,771,485.59
  5. Step 5: Solve for x
    x = 413,861,771,485.59/989,119.86
  6. Step 6: Final answer
    x = 418,414.18

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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.