Home / 876,406.09-1,314,684.41-307,738.32

Finding the Fourth Proportional to 876,406.09, 1,314,684.41 and 307,738.32

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Solution

The fourth proportional to 876,406.09, 1,314,684.41 and 307,738.32 is: 461,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,406.09 : 1,314,684.41 = 307,738.32 : x
  2. Step 2: Convert to fraction form
    876,406.09/1,314,684.41 = 307,738.32/x
  3. Step 3: Cross multiply
    876,406.09x = 1,314,684.41 × 307,738.32
  4. Step 4: Simplify right side
    876,406.09x = 404,578,771,663.59
  5. Step 5: Solve for x
    x = 404,578,771,663.59/876,406.09
  6. Step 6: Final answer
    x = 461,633.91

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Double scale
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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.