Home / 872,812.61-1,204,375.62-485,536.52

Finding the Fourth Proportional to 872,812.61, 1,204,375.62 and 485,536.52

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Solution

The fourth proportional to 872,812.61, 1,204,375.62 and 485,536.52 is: 669,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,812.61 : 1,204,375.62 = 485,536.52 : x
  2. Step 2: Convert to fraction form
    872,812.61/1,204,375.62 = 485,536.52/x
  3. Step 3: Cross multiply
    872,812.61x = 1,204,375.62 × 485,536.52
  4. Step 4: Simplify right side
    872,812.61x = 584,768,341,285.76
  5. Step 5: Solve for x
    x = 584,768,341,285.76/872,812.61
  6. Step 6: Final answer
    x = 669,981.55

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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.