Home / 1,332,031.23-1,998,342.09-621,671.76

Finding the Fourth Proportional to 1,332,031.23, 1,998,342.09 and 621,671.76

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Solution

The fourth proportional to 1,332,031.23, 1,998,342.09 and 621,671.76 is: 932,645.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,031.23 : 1,998,342.09 = 621,671.76 : x
  2. Step 2: Convert to fraction form
    1,332,031.23/1,998,342.09 = 621,671.76/x
  3. Step 3: Cross multiply
    1,332,031.23x = 1,998,342.09 × 621,671.76
  4. Step 4: Simplify right side
    1,332,031.23x = 1,242,312,844,172.38
  5. Step 5: Solve for x
    x = 1,242,312,844,172.38/1,332,031.23
  6. Step 6: Final answer
    x = 932,645.43

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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.