Home / 721,130.48-1,080,039.52-360,193.46

Finding the Fourth Proportional to 721,130.48, 1,080,039.52 and 360,193.46

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Solution

The fourth proportional to 721,130.48, 1,080,039.52 and 360,193.46 is: 539,462.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,130.48 : 1,080,039.52 = 360,193.46 : x
  2. Step 2: Convert to fraction form
    721,130.48/1,080,039.52 = 360,193.46/x
  3. Step 3: Cross multiply
    721,130.48x = 1,080,039.52 × 360,193.46
  4. Step 4: Simplify right side
    721,130.48x = 389,023,173,445.15
  5. Step 5: Solve for x
    x = 389,023,173,445.15/721,130.48
  6. Step 6: Final answer
    x = 539,462.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.