Home / 891,153.50-1,336,708.17-260,072.78

Finding the Fourth Proportional to 891,153.50, 1,336,708.17 and 260,072.78

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Solution

The fourth proportional to 891,153.50, 1,336,708.17 and 260,072.78 is: 390,102.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,153.50 : 1,336,708.17 = 260,072.78 : x
  2. Step 2: Convert to fraction form
    891,153.50/1,336,708.17 = 260,072.78/x
  3. Step 3: Cross multiply
    891,153.50x = 1,336,708.17 × 260,072.78
  4. Step 4: Simplify right side
    891,153.50x = 347,641,403,137.07
  5. Step 5: Solve for x
    x = 347,641,403,137.07/891,153.50
  6. Step 6: Final answer
    x = 390,102.72

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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.