Home / 809,250.20-1,215,257.70-530,005.40

Finding the Fourth Proportional to 809,250.20, 1,215,257.70 and 530,005.40

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Solution

The fourth proportional to 809,250.20, 1,215,257.70 and 530,005.40 is: 795,913.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,250.20 : 1,215,257.70 = 530,005.40 : x
  2. Step 2: Convert to fraction form
    809,250.20/1,215,257.70 = 530,005.40/x
  3. Step 3: Cross multiply
    809,250.20x = 1,215,257.70 × 530,005.40
  4. Step 4: Simplify right side
    809,250.20x = 644,093,143,391.58
  5. Step 5: Solve for x
    x = 644,093,143,391.58/809,250.20
  6. Step 6: Final answer
    x = 795,913.48

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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.