Home / 646,111.71-891,634.20-359,625.65

Finding the Fourth Proportional to 646,111.71, 891,634.20 and 359,625.65

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Solution

The fourth proportional to 646,111.71, 891,634.20 and 359,625.65 is: 496,283.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,111.71 : 891,634.20 = 359,625.65 : x
  2. Step 2: Convert to fraction form
    646,111.71/891,634.20 = 359,625.65/x
  3. Step 3: Cross multiply
    646,111.71x = 891,634.20 × 359,625.65
  4. Step 4: Simplify right side
    646,111.71x = 320,654,528,737.23
  5. Step 5: Solve for x
    x = 320,654,528,737.23/646,111.71
  6. Step 6: Final answer
    x = 496,283.42

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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.