Home / 998,786.28-1,498,015.39-430,014.23

Finding the Fourth Proportional to 998,786.28, 1,498,015.39 and 430,014.23

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Solution

The fourth proportional to 998,786.28, 1,498,015.39 and 430,014.23 is: 644,950.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,786.28 : 1,498,015.39 = 430,014.23 : x
  2. Step 2: Convert to fraction form
    998,786.28/1,498,015.39 = 430,014.23/x
  3. Step 3: Cross multiply
    998,786.28x = 1,498,015.39 × 430,014.23
  4. Step 4: Simplify right side
    998,786.28x = 644,167,934,459.00
  5. Step 5: Solve for x
    x = 644,167,934,459.00/998,786.28
  6. Step 6: Final answer
    x = 644,950.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.