Home / 741,042.70-1,022,639.60-401,510.95

Finding the Fourth Proportional to 741,042.70, 1,022,639.60 and 401,510.95

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Solution

The fourth proportional to 741,042.70, 1,022,639.60 and 401,510.95 is: 554,085.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,042.70 : 1,022,639.60 = 401,510.95 : x
  2. Step 2: Convert to fraction form
    741,042.70/1,022,639.60 = 401,510.95/x
  3. Step 3: Cross multiply
    741,042.70x = 1,022,639.60 × 401,510.95
  4. Step 4: Simplify right side
    741,042.70x = 410,600,992,739.47
  5. Step 5: Solve for x
    x = 410,600,992,739.47/741,042.70
  6. Step 6: Final answer
    x = 554,085.47

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.