Home / 674,921.26-931,410.78-373,134.70

Finding the Fourth Proportional to 674,921.26, 931,410.78 and 373,134.70

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Solution

The fourth proportional to 674,921.26, 931,410.78 and 373,134.70 is: 514,936.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,921.26 : 931,410.78 = 373,134.70 : x
  2. Step 2: Convert to fraction form
    674,921.26/931,410.78 = 373,134.70/x
  3. Step 3: Cross multiply
    674,921.26x = 931,410.78 × 373,134.70
  4. Step 4: Simplify right side
    674,921.26x = 347,541,681,972.07
  5. Step 5: Solve for x
    x = 347,541,681,972.07/674,921.26
  6. Step 6: Final answer
    x = 514,936.63

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Double scale
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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.