Home / 1,323,315.96-1,985,170.78-613,415.76

Finding the Fourth Proportional to 1,323,315.96, 1,985,170.78 and 613,415.76

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Solution

The fourth proportional to 1,323,315.96, 1,985,170.78 and 613,415.76 is: 920,214.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,315.96 : 1,985,170.78 = 613,415.76 : x
  2. Step 2: Convert to fraction form
    1,323,315.96/1,985,170.78 = 613,415.76/x
  3. Step 3: Cross multiply
    1,323,315.96x = 1,985,170.78 × 613,415.76
  4. Step 4: Simplify right side
    1,323,315.96x = 1,217,735,042,743.49
  5. Step 5: Solve for x
    x = 1,217,735,042,743.49/1,323,315.96
  6. Step 6: Final answer
    x = 920,214.88

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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.