Home / 783,299.10-1,081,306.95-493,336.80

Finding the Fourth Proportional to 783,299.10, 1,081,306.95 and 493,336.80

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Solution

The fourth proportional to 783,299.10, 1,081,306.95 and 493,336.80 is: 681,027.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,299.10 : 1,081,306.95 = 493,336.80 : x
  2. Step 2: Convert to fraction form
    783,299.10/1,081,306.95 = 493,336.80/x
  3. Step 3: Cross multiply
    783,299.10x = 1,081,306.95 × 493,336.80
  4. Step 4: Simplify right side
    783,299.10x = 533,448,513,456.30
  5. Step 5: Solve for x
    x = 533,448,513,456.30/783,299.10
  6. Step 6: Final answer
    x = 681,027.87

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1.5x scale

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.