Home / 5,421,973.46-8,132,979.19-1,378,461.71

Finding the Fourth Proportional to 5,421,973.46, 8,132,979.19 and 1,378,461.71

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Solution

The fourth proportional to 5,421,973.46, 8,132,979.19 and 1,378,461.71 is: 2,067,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421,973.46 : 8,132,979.19 = 1,378,461.71 : x
  2. Step 2: Convert to fraction form
    5,421,973.46/8,132,979.19 = 1,378,461.71/x
  3. Step 3: Cross multiply
    5,421,973.46x = 8,132,979.19 × 1,378,461.71
  4. Step 4: Simplify right side
    5,421,973.46x = 11,211,000,384,755.52
  5. Step 5: Solve for x
    x = 11,211,000,384,755.52/5,421,973.46
  6. Step 6: Final answer
    x = 2,067,697.39

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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.