Home / 931,239.60-1,283,884.94-608,388.72

Finding the Fourth Proportional to 931,239.60, 1,283,884.94 and 608,388.72

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Solution

The fourth proportional to 931,239.60, 1,283,884.94 and 608,388.72 is: 838,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,239.60 : 1,283,884.94 = 608,388.72 : x
  2. Step 2: Convert to fraction form
    931,239.60/1,283,884.94 = 608,388.72/x
  3. Step 3: Cross multiply
    931,239.60x = 1,283,884.94 × 608,388.72
  4. Step 4: Simplify right side
    931,239.60x = 781,101,115,273.88
  5. Step 5: Solve for x
    x = 781,101,115,273.88/931,239.60
  6. Step 6: Final answer
    x = 838,775.67

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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.