Home / 740,493.20-1,111,258.20-320,070.80

Finding the Fourth Proportional to 740,493.20, 1,111,258.20 and 320,070.80

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Solution

The fourth proportional to 740,493.20, 1,111,258.20 and 320,070.80 is: 480,330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,493.20 : 1,111,258.20 = 320,070.80 : x
  2. Step 2: Convert to fraction form
    740,493.20/1,111,258.20 = 320,070.80/x
  3. Step 3: Cross multiply
    740,493.20x = 1,111,258.20 × 320,070.80
  4. Step 4: Simplify right side
    740,493.20x = 355,681,301,080.56
  5. Step 5: Solve for x
    x = 355,681,301,080.56/740,493.20
  6. Step 6: Final answer
    x = 480,330.27

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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.