Home / 709,943.22-979,166.34-455,318.10

Finding the Fourth Proportional to 709,943.22, 979,166.34 and 455,318.10

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Solution

The fourth proportional to 709,943.22, 979,166.34 and 455,318.10 is: 627,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,943.22 : 979,166.34 = 455,318.10 : x
  2. Step 2: Convert to fraction form
    709,943.22/979,166.34 = 455,318.10/x
  3. Step 3: Cross multiply
    709,943.22x = 979,166.34 × 455,318.10
  4. Step 4: Simplify right side
    709,943.22x = 445,832,157,512.75
  5. Step 5: Solve for x
    x = 445,832,157,512.75/709,943.22
  6. Step 6: Final answer
    x = 627,982.84

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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.