Home / 738,287.80-1,107,431.70-365,039.80

Finding the Fourth Proportional to 738,287.80, 1,107,431.70 and 365,039.80

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Solution

The fourth proportional to 738,287.80, 1,107,431.70 and 365,039.80 is: 547,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,287.80 : 1,107,431.70 = 365,039.80 : x
  2. Step 2: Convert to fraction form
    738,287.80/1,107,431.70 = 365,039.80/x
  3. Step 3: Cross multiply
    738,287.80x = 1,107,431.70 × 365,039.80
  4. Step 4: Simplify right side
    738,287.80x = 404,256,646,281.66
  5. Step 5: Solve for x
    x = 404,256,646,281.66/738,287.80
  6. Step 6: Final answer
    x = 547,559.70

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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.