Home / 746,653.38-1,030,382.70-407,121.63

Finding the Fourth Proportional to 746,653.38, 1,030,382.70 and 407,121.63

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Solution

The fourth proportional to 746,653.38, 1,030,382.70 and 407,121.63 is: 561,828.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,653.38 : 1,030,382.70 = 407,121.63 : x
  2. Step 2: Convert to fraction form
    746,653.38/1,030,382.70 = 407,121.63/x
  3. Step 3: Cross multiply
    746,653.38x = 1,030,382.70 × 407,121.63
  4. Step 4: Simplify right side
    746,653.38x = 419,491,084,347.80
  5. Step 5: Solve for x
    x = 419,491,084,347.80/746,653.38
  6. Step 6: Final answer
    x = 561,828.41

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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.