Home / 782,350.85-1,078,584.05-668,848.66

Finding the Fourth Proportional to 782,350.85, 1,078,584.05 and 668,848.66

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Solution

The fourth proportional to 782,350.85, 1,078,584.05 and 668,848.66 is: 922,104.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,350.85 : 1,078,584.05 = 668,848.66 : x
  2. Step 2: Convert to fraction form
    782,350.85/1,078,584.05 = 668,848.66/x
  3. Step 3: Cross multiply
    782,350.85x = 1,078,584.05 × 668,848.66
  4. Step 4: Simplify right side
    782,350.85x = 721,409,487,802.71
  5. Step 5: Solve for x
    x = 721,409,487,802.71/782,350.85
  6. Step 6: Final answer
    x = 922,104.82

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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.