Home / 782,301.98-1,173,263.31-213,685.74

Finding the Fourth Proportional to 782,301.98, 1,173,263.31 and 213,685.74

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Solution

The fourth proportional to 782,301.98, 1,173,263.31 and 213,685.74 is: 320,476.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,301.98 : 1,173,263.31 = 213,685.74 : x
  2. Step 2: Convert to fraction form
    782,301.98/1,173,263.31 = 213,685.74/x
  3. Step 3: Cross multiply
    782,301.98x = 1,173,263.31 × 213,685.74
  4. Step 4: Simplify right side
    782,301.98x = 250,709,638,612.20
  5. Step 5: Solve for x
    x = 250,709,638,612.20/782,301.98
  6. Step 6: Final answer
    x = 320,476.81

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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.