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Finding the Fourth Proportional to 646,167.09, 891,794.15 and 370,632.45

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Solution

The fourth proportional to 646,167.09, 891,794.15 and 370,632.45 is: 511,520.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,167.09 : 891,794.15 = 370,632.45 : x
  2. Step 2: Convert to fraction form
    646,167.09/891,794.15 = 370,632.45/x
  3. Step 3: Cross multiply
    646,167.09x = 891,794.15 × 370,632.45
  4. Step 4: Simplify right side
    646,167.09x = 330,527,850,710.17
  5. Step 5: Solve for x
    x = 330,527,850,710.17/646,167.09
  6. Step 6: Final answer
    x = 511,520.71

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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.