Home / 767,185.87-1,151,110.66-411,784.70

Finding the Fourth Proportional to 767,185.87, 1,151,110.66 and 411,784.70

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Solution

The fourth proportional to 767,185.87, 1,151,110.66 and 411,784.70 is: 617,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,185.87 : 1,151,110.66 = 411,784.70 : x
  2. Step 2: Convert to fraction form
    767,185.87/1,151,110.66 = 411,784.70/x
  3. Step 3: Cross multiply
    767,185.87x = 1,151,110.66 × 411,784.70
  4. Step 4: Simplify right side
    767,185.87x = 474,009,757,794.90
  5. Step 5: Solve for x
    x = 474,009,757,794.90/767,185.87
  6. Step 6: Final answer
    x = 617,855.17

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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.