Home / 726,709.30-1,090,063.95-540,085.30

Finding the Fourth Proportional to 726,709.30, 1,090,063.95 and 540,085.30

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Solution

The fourth proportional to 726,709.30, 1,090,063.95 and 540,085.30 is: 810,127.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,709.30 : 1,090,063.95 = 540,085.30 : x
  2. Step 2: Convert to fraction form
    726,709.30/1,090,063.95 = 540,085.30/x
  3. Step 3: Cross multiply
    726,709.30x = 1,090,063.95 × 540,085.30
  4. Step 4: Simplify right side
    726,709.30x = 588,727,515,454.94
  5. Step 5: Solve for x
    x = 588,727,515,454.94/726,709.30
  6. Step 6: Final answer
    x = 810,127.95

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Double scale
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Similar ratio
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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.