Home / 878,511.28-1,317,788.52-247,420.84

Finding the Fourth Proportional to 878,511.28, 1,317,788.52 and 247,420.84

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Solution

The fourth proportional to 878,511.28, 1,317,788.52 and 247,420.84 is: 371,137.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,511.28 : 1,317,788.52 = 247,420.84 : x
  2. Step 2: Convert to fraction form
    878,511.28/1,317,788.52 = 247,420.84/x
  3. Step 3: Cross multiply
    878,511.28x = 1,317,788.52 × 247,420.84
  4. Step 4: Simplify right side
    878,511.28x = 326,048,342,560.76
  5. Step 5: Solve for x
    x = 326,048,342,560.76/878,511.28
  6. Step 6: Final answer
    x = 371,137.34

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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.