Home / 1,452,977.66-2,178,711.23-428,173.49

Finding the Fourth Proportional to 1,452,977.66, 2,178,711.23 and 428,173.49

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Solution

The fourth proportional to 1,452,977.66, 2,178,711.23 and 428,173.49 is: 642,037.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452,977.66 : 2,178,711.23 = 428,173.49 : x
  2. Step 2: Convert to fraction form
    1,452,977.66/2,178,711.23 = 428,173.49/x
  3. Step 3: Cross multiply
    1,452,977.66x = 2,178,711.23 × 428,173.49
  4. Step 4: Simplify right side
    1,452,977.66x = 932,866,397,367.82
  5. Step 5: Solve for x
    x = 932,866,397,367.82/1,452,977.66
  6. Step 6: Final answer
    x = 642,037.67

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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.