Home / 998,580.78-1,378,041.42-545,871.78

Finding the Fourth Proportional to 998,580.78, 1,378,041.42 and 545,871.78

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Solution

The fourth proportional to 998,580.78, 1,378,041.42 and 545,871.78 is: 753,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,580.78 : 1,378,041.42 = 545,871.78 : x
  2. Step 2: Convert to fraction form
    998,580.78/1,378,041.42 = 545,871.78/x
  3. Step 3: Cross multiply
    998,580.78x = 1,378,041.42 × 545,871.78
  4. Step 4: Simplify right side
    998,580.78x = 752,233,922,849.13
  5. Step 5: Solve for x
    x = 752,233,922,849.13/998,580.78
  6. Step 6: Final answer
    x = 753,303.03

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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.