Home / 758,136.03-1,045,789.16-489,864.03

Finding the Fourth Proportional to 758,136.03, 1,045,789.16 and 489,864.03

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Solution

The fourth proportional to 758,136.03, 1,045,789.16 and 489,864.03 is: 675,728.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,136.03 : 1,045,789.16 = 489,864.03 : x
  2. Step 2: Convert to fraction form
    758,136.03/1,045,789.16 = 489,864.03/x
  3. Step 3: Cross multiply
    758,136.03x = 1,045,789.16 × 489,864.03
  4. Step 4: Simplify right side
    758,136.03x = 512,294,489,998.60
  5. Step 5: Solve for x
    x = 512,294,489,998.60/758,136.03
  6. Step 6: Final answer
    x = 675,728.98

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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.