Home / 851,658.93-1,175,238.59-489,141.81

Finding the Fourth Proportional to 851,658.93, 1,175,238.59 and 489,141.81

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Solution

The fourth proportional to 851,658.93, 1,175,238.59 and 489,141.81 is: 674,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,658.93 : 1,175,238.59 = 489,141.81 : x
  2. Step 2: Convert to fraction form
    851,658.93/1,175,238.59 = 489,141.81/x
  3. Step 3: Cross multiply
    851,658.93x = 1,175,238.59 × 489,141.81
  4. Step 4: Simplify right side
    851,658.93x = 574,858,328,648.74
  5. Step 5: Solve for x
    x = 574,858,328,648.74/851,658.93
  6. Step 6: Final answer
    x = 674,986.56

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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.