Home / 780,563.70-1,076,783.40-522,451.44

Finding the Fourth Proportional to 780,563.70, 1,076,783.40 and 522,451.44

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Solution

The fourth proportional to 780,563.70, 1,076,783.40 and 522,451.44 is: 720,718.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,563.70 : 1,076,783.40 = 522,451.44 : x
  2. Step 2: Convert to fraction form
    780,563.70/1,076,783.40 = 522,451.44/x
  3. Step 3: Cross multiply
    780,563.70x = 1,076,783.40 × 522,451.44
  4. Step 4: Simplify right side
    780,563.70x = 562,567,037,898.10
  5. Step 5: Solve for x
    x = 562,567,037,898.10/780,563.70
  6. Step 6: Final answer
    x = 720,718.93

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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.