Home / 786,321.20-1,177,732.20-646,353.20

Finding the Fourth Proportional to 786,321.20, 1,177,732.20 and 646,353.20

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Solution

The fourth proportional to 786,321.20, 1,177,732.20 and 646,353.20 is: 968,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,321.20 : 1,177,732.20 = 646,353.20 : x
  2. Step 2: Convert to fraction form
    786,321.20/1,177,732.20 = 646,353.20/x
  3. Step 3: Cross multiply
    786,321.20x = 1,177,732.20 × 646,353.20
  4. Step 4: Simplify right side
    786,321.20x = 761,230,976,213.04
  5. Step 5: Solve for x
    x = 761,230,976,213.04/786,321.20
  6. Step 6: Final answer
    x = 968,091.64

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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.