Home / 891,355.78-1,336,902.15-260,100.10

Finding the Fourth Proportional to 891,355.78, 1,336,902.15 and 260,100.10

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Solution

The fourth proportional to 891,355.78, 1,336,902.15 and 260,100.10 is: 390,111.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,355.78 : 1,336,902.15 = 260,100.10 : x
  2. Step 2: Convert to fraction form
    891,355.78/1,336,902.15 = 260,100.10/x
  3. Step 3: Cross multiply
    891,355.78x = 1,336,902.15 × 260,100.10
  4. Step 4: Simplify right side
    891,355.78x = 347,728,382,905.22
  5. Step 5: Solve for x
    x = 347,728,382,905.22/891,355.78
  6. Step 6: Final answer
    x = 390,111.77

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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.