Home / 674,253.93-1,011,419.73-253,533.45

Finding the Fourth Proportional to 674,253.93, 1,011,419.73 and 253,533.45

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Solution

The fourth proportional to 674,253.93, 1,011,419.73 and 253,533.45 is: 380,314.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,253.93 : 1,011,419.73 = 253,533.45 : x
  2. Step 2: Convert to fraction form
    674,253.93/1,011,419.73 = 253,533.45/x
  3. Step 3: Cross multiply
    674,253.93x = 1,011,419.73 × 253,533.45
  4. Step 4: Simplify right side
    674,253.93x = 256,428,733,544.97
  5. Step 5: Solve for x
    x = 256,428,733,544.97/674,253.93
  6. Step 6: Final answer
    x = 380,314.78

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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.