Home / 767,186.12-1,151,111.03-411,784.95

Finding the Fourth Proportional to 767,186.12, 1,151,111.03 and 411,784.95

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Solution

The fourth proportional to 767,186.12, 1,151,111.03 and 411,784.95 is: 617,855.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,186.12 : 1,151,111.03 = 411,784.95 : x
  2. Step 2: Convert to fraction form
    767,186.12/1,151,111.03 = 411,784.95/x
  3. Step 3: Cross multiply
    767,186.12x = 1,151,111.03 × 411,784.95
  4. Step 4: Simplify right side
    767,186.12x = 474,010,197,933.00
  5. Step 5: Solve for x
    x = 474,010,197,933.00/767,186.12
  6. Step 6: Final answer
    x = 617,855.54

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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.