Home / 877,578.28-1,316,106.60-372,131.80

Finding the Fourth Proportional to 877,578.28, 1,316,106.60 and 372,131.80

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Solution

The fourth proportional to 877,578.28, 1,316,106.60 and 372,131.80 is: 558,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,578.28 : 1,316,106.60 = 372,131.80 : x
  2. Step 2: Convert to fraction form
    877,578.28/1,316,106.60 = 372,131.80/x
  3. Step 3: Cross multiply
    877,578.28x = 1,316,106.60 × 372,131.80
  4. Step 4: Simplify right side
    877,578.28x = 489,765,118,049.88
  5. Step 5: Solve for x
    x = 489,765,118,049.88/877,578.28
  6. Step 6: Final answer
    x = 558,087.10

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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.