Home / 878,710.95-1,317,592.27-398,676.75

Finding the Fourth Proportional to 878,710.95, 1,317,592.27 and 398,676.75

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Solution

The fourth proportional to 878,710.95, 1,317,592.27 and 398,676.75 is: 597,800.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,710.95 : 1,317,592.27 = 398,676.75 : x
  2. Step 2: Convert to fraction form
    878,710.95/1,317,592.27 = 398,676.75/x
  3. Step 3: Cross multiply
    878,710.95x = 1,317,592.27 × 398,676.75
  4. Step 4: Simplify right side
    878,710.95x = 525,293,404,028.72
  5. Step 5: Solve for x
    x = 525,293,404,028.72/878,710.95
  6. Step 6: Final answer
    x = 597,800.00

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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.