Home / 726,488.03-1,089,897.89-221,120.63

Finding the Fourth Proportional to 726,488.03, 1,089,897.89 and 221,120.63

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Solution

The fourth proportional to 726,488.03, 1,089,897.89 and 221,120.63 is: 331,731.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,488.03 : 1,089,897.89 = 221,120.63 : x
  2. Step 2: Convert to fraction form
    726,488.03/1,089,897.89 = 221,120.63/x
  3. Step 3: Cross multiply
    726,488.03x = 1,089,897.89 × 221,120.63
  4. Step 4: Simplify right side
    726,488.03x = 240,998,908,072.47
  5. Step 5: Solve for x
    x = 240,998,908,072.47/726,488.03
  6. Step 6: Final answer
    x = 331,731.42

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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.