Home / 979,100.98-1,468,318.77-339,255.40

Finding the Fourth Proportional to 979,100.98, 1,468,318.77 and 339,255.40

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Solution

The fourth proportional to 979,100.98, 1,468,318.77 and 339,255.40 is: 508,767.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,100.98 : 1,468,318.77 = 339,255.40 : x
  2. Step 2: Convert to fraction form
    979,100.98/1,468,318.77 = 339,255.40/x
  3. Step 3: Cross multiply
    979,100.98x = 1,468,318.77 × 339,255.40
  4. Step 4: Simplify right side
    979,100.98x = 498,135,071,643.86
  5. Step 5: Solve for x
    x = 498,135,071,643.86/979,100.98
  6. Step 6: Final answer
    x = 508,767.82

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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.