Home / 780,580.74-1,076,806.80-522,468.66

Finding the Fourth Proportional to 780,580.74, 1,076,806.80 and 522,468.66

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Solution

The fourth proportional to 780,580.74, 1,076,806.80 and 522,468.66 is: 720,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,580.74 : 1,076,806.80 = 522,468.66 : x
  2. Step 2: Convert to fraction form
    780,580.74/1,076,806.80 = 522,468.66/x
  3. Step 3: Cross multiply
    780,580.74x = 1,076,806.80 × 522,468.66
  4. Step 4: Simplify right side
    780,580.74x = 562,597,805,874.89
  5. Step 5: Solve for x
    x = 562,597,805,874.89/780,580.74
  6. Step 6: Final answer
    x = 720,742.62

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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.