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Finding the Fourth Proportional to 649,259.60, 896,552.75 and 404,661.80

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Solution

The fourth proportional to 649,259.60, 896,552.75 and 404,661.80 is: 558,791.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,259.60 : 896,552.75 = 404,661.80 : x
  2. Step 2: Convert to fraction form
    649,259.60/896,552.75 = 404,661.80/x
  3. Step 3: Cross multiply
    649,259.60x = 896,552.75 × 404,661.80
  4. Step 4: Simplify right side
    649,259.60x = 362,800,647,586.64
  5. Step 5: Solve for x
    x = 362,800,647,586.64/649,259.60
  6. Step 6: Final answer
    x = 558,791.35

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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.