Home / 780,591.49-1,076,821.63-522,479.41

Finding the Fourth Proportional to 780,591.49, 1,076,821.63 and 522,479.41

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Solution

The fourth proportional to 780,591.49, 1,076,821.63 and 522,479.41 is: 720,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,591.49 : 1,076,821.63 = 522,479.41 : x
  2. Step 2: Convert to fraction form
    780,591.49/1,076,821.63 = 522,479.41/x
  3. Step 3: Cross multiply
    780,591.49x = 1,076,821.63 × 522,479.41
  4. Step 4: Simplify right side
    780,591.49x = 562,617,129,917.64
  5. Step 5: Solve for x
    x = 562,617,129,917.64/780,591.49
  6. Step 6: Final answer
    x = 720,757.45

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1.5x scale

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.