Home / 1,817,865.12-2,508,633.44-990,920.57

Finding the Fourth Proportional to 1,817,865.12, 2,508,633.44 and 990,920.57

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Solution

The fourth proportional to 1,817,865.12, 2,508,633.44 and 990,920.57 is: 1,367,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817,865.12 : 2,508,633.44 = 990,920.57 : x
  2. Step 2: Convert to fraction form
    1,817,865.12/2,508,633.44 = 990,920.57/x
  3. Step 3: Cross multiply
    1,817,865.12x = 2,508,633.44 × 990,920.57
  4. Step 4: Simplify right side
    1,817,865.12x = 2,485,856,478,285.86
  5. Step 5: Solve for x
    x = 2,485,856,478,285.86/1,817,865.12
  6. Step 6: Final answer
    x = 1,367,459.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.