Home / 780,655.24-1,076,974.27-522,615.30

Finding the Fourth Proportional to 780,655.24, 1,076,974.27 and 522,615.30

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Solution

The fourth proportional to 780,655.24, 1,076,974.27 and 522,615.30 is: 720,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,655.24 : 1,076,974.27 = 522,615.30 : x
  2. Step 2: Convert to fraction form
    780,655.24/1,076,974.27 = 522,615.30/x
  3. Step 3: Cross multiply
    780,655.24x = 1,076,974.27 × 522,615.30
  4. Step 4: Simplify right side
    780,655.24x = 562,843,231,208.33
  5. Step 5: Solve for x
    x = 562,843,231,208.33/780,655.24
  6. Step 6: Final answer
    x = 720,988.22

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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.