Home / 771,795.78-1,065,116.16-465,867.30

Finding the Fourth Proportional to 771,795.78, 1,065,116.16 and 465,867.30

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Solution

The fourth proportional to 771,795.78, 1,065,116.16 and 465,867.30 is: 642,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,795.78 : 1,065,116.16 = 465,867.30 : x
  2. Step 2: Convert to fraction form
    771,795.78/1,065,116.16 = 465,867.30/x
  3. Step 3: Cross multiply
    771,795.78x = 1,065,116.16 × 465,867.30
  4. Step 4: Simplify right side
    771,795.78x = 496,202,789,645.57
  5. Step 5: Solve for x
    x = 496,202,789,645.57/771,795.78
  6. Step 6: Final answer
    x = 642,919.80

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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.