Home / 861,944.55-1,189,483.42-499,578.60

Finding the Fourth Proportional to 861,944.55, 1,189,483.42 and 499,578.60

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Solution

The fourth proportional to 861,944.55, 1,189,483.42 and 499,578.60 is: 689,418.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,944.55 : 1,189,483.42 = 499,578.60 : x
  2. Step 2: Convert to fraction form
    861,944.55/1,189,483.42 = 499,578.60/x
  3. Step 3: Cross multiply
    861,944.55x = 1,189,483.42 × 499,578.60
  4. Step 4: Simplify right side
    861,944.55x = 594,240,461,686.81
  5. Step 5: Solve for x
    x = 594,240,461,686.81/861,944.55
  6. Step 6: Final answer
    x = 689,418.43

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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.