Home / 646,039.20-891,525.21-359,559.24

Finding the Fourth Proportional to 646,039.20, 891,525.21 and 359,559.24

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Solution

The fourth proportional to 646,039.20, 891,525.21 and 359,559.24 is: 496,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,039.20 : 891,525.21 = 359,559.24 : x
  2. Step 2: Convert to fraction form
    646,039.20/891,525.21 = 359,559.24/x
  3. Step 3: Cross multiply
    646,039.20x = 891,525.21 × 359,559.24
  4. Step 4: Simplify right side
    646,039.20x = 320,556,126,948.44
  5. Step 5: Solve for x
    x = 320,556,126,948.44/646,039.20
  6. Step 6: Final answer
    x = 496,186.81

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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.