Home / 1,281,883.92-1,769,221.68-772,586.72

Finding the Fourth Proportional to 1,281,883.92, 1,769,221.68 and 772,586.72

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Solution

The fourth proportional to 1,281,883.92, 1,769,221.68 and 772,586.72 is: 1,066,303.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,883.92 : 1,769,221.68 = 772,586.72 : x
  2. Step 2: Convert to fraction form
    1,281,883.92/1,769,221.68 = 772,586.72/x
  3. Step 3: Cross multiply
    1,281,883.92x = 1,769,221.68 × 772,586.72
  4. Step 4: Simplify right side
    1,281,883.92x = 1,366,877,174,704.09
  5. Step 5: Solve for x
    x = 1,366,877,174,704.09/1,281,883.92
  6. Step 6: Final answer
    x = 1,066,303.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.