Home / 1,191,636.90-1,785,122.55-716,912.10

Finding the Fourth Proportional to 1,191,636.90, 1,785,122.55 and 716,912.10

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Solution

The fourth proportional to 1,191,636.90, 1,785,122.55 and 716,912.10 is: 1,073,964.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,636.90 : 1,785,122.55 = 716,912.10 : x
  2. Step 2: Convert to fraction form
    1,191,636.90/1,785,122.55 = 716,912.10/x
  3. Step 3: Cross multiply
    1,191,636.90x = 1,785,122.55 × 716,912.10
  4. Step 4: Simplify right side
    1,191,636.90x = 1,279,775,956,077.86
  5. Step 5: Solve for x
    x = 1,279,775,956,077.86/1,191,636.90
  6. Step 6: Final answer
    x = 1,073,964.69

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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.