Home / 1,972,461.20-2,956,650.60-1,072,000.40

Finding the Fourth Proportional to 1,972,461.20, 2,956,650.60 and 1,072,000.40

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Solution

The fourth proportional to 1,972,461.20, 2,956,650.60 and 1,072,000.40 is: 1,606,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972,461.20 : 2,956,650.60 = 1,072,000.40 : x
  2. Step 2: Convert to fraction form
    1,972,461.20/2,956,650.60 = 1,072,000.40/x
  3. Step 3: Cross multiply
    1,972,461.20x = 2,956,650.60 × 1,072,000.40
  4. Step 4: Simplify right side
    1,972,461.20x = 3,169,530,625,860.24
  5. Step 5: Solve for x
    x = 3,169,530,625,860.24/1,972,461.20
  6. Step 6: Final answer
    x = 1,606,891.24

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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.