Home / 646,010.38-891,485.50-359,530.54

Finding the Fourth Proportional to 646,010.38, 891,485.50 and 359,530.54

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Solution

The fourth proportional to 646,010.38, 891,485.50 and 359,530.54 is: 496,147.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,010.38 : 891,485.50 = 359,530.54 : x
  2. Step 2: Convert to fraction form
    646,010.38/891,485.50 = 359,530.54/x
  3. Step 3: Cross multiply
    646,010.38x = 891,485.50 × 359,530.54
  4. Step 4: Simplify right side
    646,010.38x = 320,516,263,217.17
  5. Step 5: Solve for x
    x = 320,516,263,217.17/646,010.38
  6. Step 6: Final answer
    x = 496,147.23

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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.