Home / 1,665,455.91-2,498,015.74-1,129,155.67

Finding the Fourth Proportional to 1,665,455.91, 2,498,015.74 and 1,129,155.67

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Solution

The fourth proportional to 1,665,455.91, 2,498,015.74 and 1,129,155.67 is: 1,693,619.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665,455.91 : 2,498,015.74 = 1,129,155.67 : x
  2. Step 2: Convert to fraction form
    1,665,455.91/2,498,015.74 = 1,129,155.67/x
  3. Step 3: Cross multiply
    1,665,455.91x = 2,498,015.74 × 1,129,155.67
  4. Step 4: Simplify right side
    1,665,455.91x = 2,820,648,636,869.88
  5. Step 5: Solve for x
    x = 2,820,648,636,869.88/1,665,455.91
  6. Step 6: Final answer
    x = 1,693,619.52

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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.