Home / 771,761.80-1,065,087.66-465,913.36

Finding the Fourth Proportional to 771,761.80, 1,065,087.66 and 465,913.36

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Solution

The fourth proportional to 771,761.80, 1,065,087.66 and 465,913.36 is: 642,994.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,761.80 : 1,065,087.66 = 465,913.36 : x
  2. Step 2: Convert to fraction form
    771,761.80/1,065,087.66 = 465,913.36/x
  3. Step 3: Cross multiply
    771,761.80x = 1,065,087.66 × 465,913.36
  4. Step 4: Simplify right side
    771,761.80x = 496,238,570,365.14
  5. Step 5: Solve for x
    x = 496,238,570,365.14/771,761.80
  6. Step 6: Final answer
    x = 642,994.47

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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.