Home / 891,172.80-1,336,953.60-260,035.20

Finding the Fourth Proportional to 891,172.80, 1,336,953.60 and 260,035.20

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Solution

The fourth proportional to 891,172.80, 1,336,953.60 and 260,035.20 is: 390,109.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,172.80 : 1,336,953.60 = 260,035.20 : x
  2. Step 2: Convert to fraction form
    891,172.80/1,336,953.60 = 260,035.20/x
  3. Step 3: Cross multiply
    891,172.80x = 1,336,953.60 × 260,035.20
  4. Step 4: Simplify right side
    891,172.80x = 347,654,996,766.72
  5. Step 5: Solve for x
    x = 347,654,996,766.72/891,172.80
  6. Step 6: Final answer
    x = 390,109.52

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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.