Home / 1,323,004.20-1,985,543.10-613,120.20

Finding the Fourth Proportional to 1,323,004.20, 1,985,543.10 and 613,120.20

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Solution

The fourth proportional to 1,323,004.20, 1,985,543.10 and 613,120.20 is: 920,160.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,004.20 : 1,985,543.10 = 613,120.20 : x
  2. Step 2: Convert to fraction form
    1,323,004.20/1,985,543.10 = 613,120.20/x
  3. Step 3: Cross multiply
    1,323,004.20x = 1,985,543.10 × 613,120.20
  4. Step 4: Simplify right side
    1,323,004.20x = 1,217,376,582,580.62
  5. Step 5: Solve for x
    x = 1,217,376,582,580.62/1,323,004.20
  6. Step 6: Final answer
    x = 920,160.78

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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.