Home / 780,242.76-1,076,822.62-440,732.88

Finding the Fourth Proportional to 780,242.76, 1,076,822.62 and 440,732.88

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Solution

The fourth proportional to 780,242.76, 1,076,822.62 and 440,732.88 is: 608,260.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,242.76 : 1,076,822.62 = 440,732.88 : x
  2. Step 2: Convert to fraction form
    780,242.76/1,076,822.62 = 440,732.88/x
  3. Step 3: Cross multiply
    780,242.76x = 1,076,822.62 × 440,732.88
  4. Step 4: Simplify right side
    780,242.76x = 474,591,134,561.75
  5. Step 5: Solve for x
    x = 474,591,134,561.75/780,242.76
  6. Step 6: Final answer
    x = 608,260.86

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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.