Home / 780,344.75-1,076,963.28-440,834.87

Finding the Fourth Proportional to 780,344.75, 1,076,963.28 and 440,834.87

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Solution

The fourth proportional to 780,344.75, 1,076,963.28 and 440,834.87 is: 608,401.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,344.75 : 1,076,963.28 = 440,834.87 : x
  2. Step 2: Convert to fraction form
    780,344.75/1,076,963.28 = 440,834.87/x
  3. Step 3: Cross multiply
    780,344.75x = 1,076,963.28 × 440,834.87
  4. Step 4: Simplify right side
    780,344.75x = 474,762,967,533.57
  5. Step 5: Solve for x
    x = 474,762,967,533.57/780,344.75
  6. Step 6: Final answer
    x = 608,401.57

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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.