Home / 856,939.88-1,182,615.60-489,448.96

Finding the Fourth Proportional to 856,939.88, 1,182,615.60 and 489,448.96

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Solution

The fourth proportional to 856,939.88, 1,182,615.60 and 489,448.96 is: 675,461.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,939.88 : 1,182,615.60 = 489,448.96 : x
  2. Step 2: Convert to fraction form
    856,939.88/1,182,615.60 = 489,448.96/x
  3. Step 3: Cross multiply
    856,939.88x = 1,182,615.60 × 489,448.96
  4. Step 4: Simplify right side
    856,939.88x = 578,829,975,499.78
  5. Step 5: Solve for x
    x = 578,829,975,499.78/856,939.88
  6. Step 6: Final answer
    x = 675,461.59

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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.