Home / 786,086.40-1,179,129.60-772,964.40

Finding the Fourth Proportional to 786,086.40, 1,179,129.60 and 772,964.40

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Solution

The fourth proportional to 786,086.40, 1,179,129.60 and 772,964.40 is: 1,159,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,086.40 : 1,179,129.60 = 772,964.40 : x
  2. Step 2: Convert to fraction form
    786,086.40/1,179,129.60 = 772,964.40/x
  3. Step 3: Cross multiply
    786,086.40x = 1,179,129.60 × 772,964.40
  4. Step 4: Simplify right side
    786,086.40x = 911,425,203,786.24
  5. Step 5: Solve for x
    x = 911,425,203,786.24/786,086.40
  6. Step 6: Final answer
    x = 1,159,446.60

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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.