Home / 767,185.12-1,151,109.53-411,783.95

Finding the Fourth Proportional to 767,185.12, 1,151,109.53 and 411,783.95

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Solution

The fourth proportional to 767,185.12, 1,151,109.53 and 411,783.95 is: 617,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,185.12 : 1,151,109.53 = 411,783.95 : x
  2. Step 2: Convert to fraction form
    767,185.12/1,151,109.53 = 411,783.95/x
  3. Step 3: Cross multiply
    767,185.12x = 1,151,109.53 × 411,783.95
  4. Step 4: Simplify right side
    767,185.12x = 474,008,433,053.28
  5. Step 5: Solve for x
    x = 474,008,433,053.28/767,185.12
  6. Step 6: Final answer
    x = 617,854.05

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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.