Home / 1,313,386.56-1,970,080.38-316,114.56

Finding the Fourth Proportional to 1,313,386.56, 1,970,080.38 and 316,114.56

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Solution

The fourth proportional to 1,313,386.56, 1,970,080.38 and 316,114.56 is: 474,171.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,386.56 : 1,970,080.38 = 316,114.56 : x
  2. Step 2: Convert to fraction form
    1,313,386.56/1,970,080.38 = 316,114.56/x
  3. Step 3: Cross multiply
    1,313,386.56x = 1,970,080.38 × 316,114.56
  4. Step 4: Simplify right side
    1,313,386.56x = 622,771,092,488.33
  5. Step 5: Solve for x
    x = 622,771,092,488.33/1,313,386.56
  6. Step 6: Final answer
    x = 474,171.97

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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.