Home / 1,340,458.70-2,010,688.05-809,617.10

Finding the Fourth Proportional to 1,340,458.70, 2,010,688.05 and 809,617.10

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Solution

The fourth proportional to 1,340,458.70, 2,010,688.05 and 809,617.10 is: 1,214,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,458.70 : 2,010,688.05 = 809,617.10 : x
  2. Step 2: Convert to fraction form
    1,340,458.70/2,010,688.05 = 809,617.10/x
  3. Step 3: Cross multiply
    1,340,458.70x = 2,010,688.05 × 809,617.10
  4. Step 4: Simplify right side
    1,340,458.70x = 1,627,887,428,045.66
  5. Step 5: Solve for x
    x = 1,627,887,428,045.66/1,340,458.70
  6. Step 6: Final answer
    x = 1,214,425.65

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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.