Home / 758,138.03-1,045,791.91-489,866.03

Finding the Fourth Proportional to 758,138.03, 1,045,791.91 and 489,866.03

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Solution

The fourth proportional to 758,138.03, 1,045,791.91 and 489,866.03 is: 675,731.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,138.03 : 1,045,791.91 = 489,866.03 : x
  2. Step 2: Convert to fraction form
    758,138.03/1,045,791.91 = 489,866.03/x
  3. Step 3: Cross multiply
    758,138.03x = 1,045,791.91 × 489,866.03
  4. Step 4: Simplify right side
    758,138.03x = 512,297,931,157.82
  5. Step 5: Solve for x
    x = 512,297,931,157.82/758,138.03
  6. Step 6: Final answer
    x = 675,731.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.