Home / 1,186,182.28-1,779,815.62-645,628.78

Finding the Fourth Proportional to 1,186,182.28, 1,779,815.62 and 645,628.78

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Solution

The fourth proportional to 1,186,182.28, 1,779,815.62 and 645,628.78 is: 968,738.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,182.28 : 1,779,815.62 = 645,628.78 : x
  2. Step 2: Convert to fraction form
    1,186,182.28/1,779,815.62 = 645,628.78/x
  3. Step 3: Cross multiply
    1,186,182.28x = 1,779,815.62 × 645,628.78
  4. Step 4: Simplify right side
    1,186,182.28x = 1,149,100,186,765.69
  5. Step 5: Solve for x
    x = 1,149,100,186,765.69/1,186,182.28
  6. Step 6: Final answer
    x = 968,738.28

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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.