Home / 850,839.62-1,174,143.47-463,658.40

Finding the Fourth Proportional to 850,839.62, 1,174,143.47 and 463,658.40

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Solution

The fourth proportional to 850,839.62, 1,174,143.47 and 463,658.40 is: 639,840.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,839.62 : 1,174,143.47 = 463,658.40 : x
  2. Step 2: Convert to fraction form
    850,839.62/1,174,143.47 = 463,658.40/x
  3. Step 3: Cross multiply
    850,839.62x = 1,174,143.47 × 463,658.40
  4. Step 4: Simplify right side
    850,839.62x = 544,401,480,352.36
  5. Step 5: Solve for x
    x = 544,401,480,352.36/850,839.62
  6. Step 6: Final answer
    x = 639,840.31

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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.