Home / 856,465.20-1,283,315.40-540,356.40

Finding the Fourth Proportional to 856,465.20, 1,283,315.40 and 540,356.40

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Solution

The fourth proportional to 856,465.20, 1,283,315.40 and 540,356.40 is: 809,662.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,465.20 : 1,283,315.40 = 540,356.40 : x
  2. Step 2: Convert to fraction form
    856,465.20/1,283,315.40 = 540,356.40/x
  3. Step 3: Cross multiply
    856,465.20x = 1,283,315.40 × 540,356.40
  4. Step 4: Simplify right side
    856,465.20x = 693,447,689,608.56
  5. Step 5: Solve for x
    x = 693,447,689,608.56/856,465.20
  6. Step 6: Final answer
    x = 809,662.42

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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.