Home / 1,313,389.56-1,970,084.88-316,117.56

Finding the Fourth Proportional to 1,313,389.56, 1,970,084.88 and 316,117.56

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Solution

The fourth proportional to 1,313,389.56, 1,970,084.88 and 316,117.56 is: 474,176.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,389.56 : 1,970,084.88 = 316,117.56 : x
  2. Step 2: Convert to fraction form
    1,313,389.56/1,970,084.88 = 316,117.56/x
  3. Step 3: Cross multiply
    1,313,389.56x = 1,970,084.88 × 316,117.56
  4. Step 4: Simplify right side
    1,313,389.56x = 622,778,425,258.49
  5. Step 5: Solve for x
    x = 622,778,425,258.49/1,313,389.56
  6. Step 6: Final answer
    x = 474,176.47

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