Home / 782,515.98-1,173,820.08-221,503.50

Finding the Fourth Proportional to 782,515.98, 1,173,820.08 and 221,503.50

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Solution

The fourth proportional to 782,515.98, 1,173,820.08 and 221,503.50 is: 332,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,515.98 : 1,173,820.08 = 221,503.50 : x
  2. Step 2: Convert to fraction form
    782,515.98/1,173,820.08 = 221,503.50/x
  3. Step 3: Cross multiply
    782,515.98x = 1,173,820.08 × 221,503.50
  4. Step 4: Simplify right side
    782,515.98x = 260,005,256,090.28
  5. Step 5: Solve for x
    x = 260,005,256,090.28/782,515.98
  6. Step 6: Final answer
    x = 332,268.30

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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.