Home / 989,963.56-1,365,117.06-587,477.80

Finding the Fourth Proportional to 989,963.56, 1,365,117.06 and 587,477.80

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Solution

The fourth proportional to 989,963.56, 1,365,117.06 and 587,477.80 is: 810,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,963.56 : 1,365,117.06 = 587,477.80 : x
  2. Step 2: Convert to fraction form
    989,963.56/1,365,117.06 = 587,477.80/x
  3. Step 3: Cross multiply
    989,963.56x = 1,365,117.06 × 587,477.80
  4. Step 4: Simplify right side
    989,963.56x = 801,975,967,151.27
  5. Step 5: Solve for x
    x = 801,975,967,151.27/989,963.56
  6. Step 6: Final answer
    x = 810,106.55

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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.