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Finding the Fourth Proportional to 539,863.74, 809,712.57 and 180,040.89

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Solution

The fourth proportional to 539,863.74, 809,712.57 and 180,040.89 is: 270,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,863.74 : 809,712.57 = 180,040.89 : x
  2. Step 2: Convert to fraction form
    539,863.74/809,712.57 = 180,040.89/x
  3. Step 3: Cross multiply
    539,863.74x = 809,712.57 × 180,040.89
  4. Step 4: Simplify right side
    539,863.74x = 145,781,371,746.99
  5. Step 5: Solve for x
    x = 145,781,371,746.99/539,863.74
  6. Step 6: Final answer
    x = 270,033.64

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1.5x scale

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.