Home / 998,783.28-1,498,010.90-430,011.23

Finding the Fourth Proportional to 998,783.28, 1,498,010.90 and 430,011.23

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Solution

The fourth proportional to 998,783.28, 1,498,010.90 and 430,011.23 is: 644,946.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,783.28 : 1,498,010.90 = 430,011.23 : x
  2. Step 2: Convert to fraction form
    998,783.28/1,498,010.90 = 430,011.23/x
  3. Step 3: Cross multiply
    998,783.28x = 1,498,010.90 × 430,011.23
  4. Step 4: Simplify right side
    998,783.28x = 644,161,500,022.30
  5. Step 5: Solve for x
    x = 644,161,500,022.30/998,783.28
  6. Step 6: Final answer
    x = 644,946.22

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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.