Home / 1,442,085.05-2,163,124.85-543,728.31

Finding the Fourth Proportional to 1,442,085.05, 2,163,124.85 and 543,728.31

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Solution

The fourth proportional to 1,442,085.05, 2,163,124.85 and 543,728.31 is: 815,591.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,085.05 : 2,163,124.85 = 543,728.31 : x
  2. Step 2: Convert to fraction form
    1,442,085.05/2,163,124.85 = 543,728.31/x
  3. Step 3: Cross multiply
    1,442,085.05x = 2,163,124.85 × 543,728.31
  4. Step 4: Simplify right side
    1,442,085.05x = 1,176,152,216,290.86
  5. Step 5: Solve for x
    x = 1,176,152,216,290.86/1,442,085.05
  6. Step 6: Final answer
    x = 815,591.44

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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.