Home / 910,971.88-1,366,507.42-378,546.60

Finding the Fourth Proportional to 910,971.88, 1,366,507.42 and 378,546.60

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Solution

The fourth proportional to 910,971.88, 1,366,507.42 and 378,546.60 is: 567,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,971.88 : 1,366,507.42 = 378,546.60 : x
  2. Step 2: Convert to fraction form
    910,971.88/1,366,507.42 = 378,546.60/x
  3. Step 3: Cross multiply
    910,971.88x = 1,366,507.42 × 378,546.60
  4. Step 4: Simplify right side
    910,971.88x = 517,286,737,715.77
  5. Step 5: Solve for x
    x = 517,286,737,715.77/910,971.88
  6. Step 6: Final answer
    x = 567,840.51

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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.