Home / 858,932.20-1,289,435.10-852,711.40

Finding the Fourth Proportional to 858,932.20, 1,289,435.10 and 852,711.40

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Solution

The fourth proportional to 858,932.20, 1,289,435.10 and 852,711.40 is: 1,280,096.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,932.20 : 1,289,435.10 = 852,711.40 : x
  2. Step 2: Convert to fraction form
    858,932.20/1,289,435.10 = 852,711.40/x
  3. Step 3: Cross multiply
    858,932.20x = 1,289,435.10 × 852,711.40
  4. Step 4: Simplify right side
    858,932.20x = 1,099,516,009,330.14
  5. Step 5: Solve for x
    x = 1,099,516,009,330.14/858,932.20
  6. Step 6: Final answer
    x = 1,280,096.39

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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.