Home / 709,469.05-979,088.91-403,589.77

Finding the Fourth Proportional to 709,469.05, 979,088.91 and 403,589.77

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Solution

The fourth proportional to 709,469.05, 979,088.91 and 403,589.77 is: 556,966.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,469.05 : 979,088.91 = 403,589.77 : x
  2. Step 2: Convert to fraction form
    709,469.05/979,088.91 = 403,589.77/x
  3. Step 3: Cross multiply
    709,469.05x = 979,088.91 × 403,589.77
  4. Step 4: Simplify right side
    709,469.05x = 395,150,267,996.45
  5. Step 5: Solve for x
    x = 395,150,267,996.45/709,469.05
  6. Step 6: Final answer
    x = 556,966.18

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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.