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Finding the Fourth Proportional to 878,676.71, 1,317,756.71 and 373,233.67

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Solution

The fourth proportional to 878,676.71, 1,317,756.71 and 373,233.67 is: 559,740.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,676.71 : 1,317,756.71 = 373,233.67 : x
  2. Step 2: Convert to fraction form
    878,676.71/1,317,756.71 = 373,233.67/x
  3. Step 3: Cross multiply
    878,676.71x = 1,317,756.71 × 373,233.67
  4. Step 4: Simplify right side
    878,676.71x = 491,831,164,585.47
  5. Step 5: Solve for x
    x = 491,831,164,585.47/878,676.71
  6. Step 6: Final answer
    x = 559,740.75

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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.