Home / 646,029.20-891,511.44-359,549.36

Finding the Fourth Proportional to 646,029.20, 891,511.44 and 359,549.36

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Solution

The fourth proportional to 646,029.20, 891,511.44 and 359,549.36 is: 496,173.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,029.20 : 891,511.44 = 359,549.36 : x
  2. Step 2: Convert to fraction form
    646,029.20/891,511.44 = 359,549.36/x
  3. Step 3: Cross multiply
    646,029.20x = 891,511.44 × 359,549.36
  4. Step 4: Simplify right side
    646,029.20x = 320,542,367,684.68
  5. Step 5: Solve for x
    x = 320,542,367,684.68/646,029.20
  6. Step 6: Final answer
    x = 496,173.19

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1.5x scale

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.