Home / 878,710.45-1,317,591.52-398,676.25

Finding the Fourth Proportional to 878,710.45, 1,317,591.52 and 398,676.25

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Solution

The fourth proportional to 878,710.45, 1,317,591.52 and 398,676.25 is: 597,799.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,710.45 : 1,317,591.52 = 398,676.25 : x
  2. Step 2: Convert to fraction form
    878,710.45/1,317,591.52 = 398,676.25/x
  3. Step 3: Cross multiply
    878,710.45x = 1,317,591.52 × 398,676.25
  4. Step 4: Simplify right side
    878,710.45x = 525,292,446,225.40
  5. Step 5: Solve for x
    x = 525,292,446,225.40/878,710.45
  6. Step 6: Final answer
    x = 597,799.25

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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.