Home / 1,328,032.20-1,993,085.10-618,148.20

Finding the Fourth Proportional to 1,328,032.20, 1,993,085.10 and 618,148.20

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Solution

The fourth proportional to 1,328,032.20, 1,993,085.10 and 618,148.20 is: 927,704.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,032.20 : 1,993,085.10 = 618,148.20 : x
  2. Step 2: Convert to fraction form
    1,328,032.20/1,993,085.10 = 618,148.20/x
  3. Step 3: Cross multiply
    1,328,032.20x = 1,993,085.10 × 618,148.20
  4. Step 4: Simplify right side
    1,328,032.20x = 1,232,021,967,011.82
  5. Step 5: Solve for x
    x = 1,232,021,967,011.82/1,328,032.20
  6. Step 6: Final answer
    x = 927,704.89

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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.