Home / 780,275.20-1,076,846.08-440,805.76

Finding the Fourth Proportional to 780,275.20, 1,076,846.08 and 440,805.76

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Solution

The fourth proportional to 780,275.20, 1,076,846.08 and 440,805.76 is: 608,349.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,275.20 : 1,076,846.08 = 440,805.76 : x
  2. Step 2: Convert to fraction form
    780,275.20/1,076,846.08 = 440,805.76/x
  3. Step 3: Cross multiply
    780,275.20x = 1,076,846.08 × 440,805.76
  4. Step 4: Simplify right side
    780,275.20x = 474,679,954,697.42
  5. Step 5: Solve for x
    x = 474,679,954,697.42/780,275.20
  6. Step 6: Final answer
    x = 608,349.41

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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.