Home / 998,575.50-1,378,039.11-545,866.50

Finding the Fourth Proportional to 998,575.50, 1,378,039.11 and 545,866.50

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Solution

The fourth proportional to 998,575.50, 1,378,039.11 and 545,866.50 is: 753,298.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,575.50 : 1,378,039.11 = 545,866.50 : x
  2. Step 2: Convert to fraction form
    998,575.50/1,378,039.11 = 545,866.50/x
  3. Step 3: Cross multiply
    998,575.50x = 1,378,039.11 × 545,866.50
  4. Step 4: Simplify right side
    998,575.50x = 752,225,385,838.82
  5. Step 5: Solve for x
    x = 752,225,385,838.82/998,575.50
  6. Step 6: Final answer
    x = 753,298.46

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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.