Home / 772,121.60-1,157,875.20-273,228.80

Finding the Fourth Proportional to 772,121.60, 1,157,875.20 and 273,228.80

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Solution

The fourth proportional to 772,121.60, 1,157,875.20 and 273,228.80 is: 409,734.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,121.60 : 1,157,875.20 = 273,228.80 : x
  2. Step 2: Convert to fraction form
    772,121.60/1,157,875.20 = 273,228.80/x
  3. Step 3: Cross multiply
    772,121.60x = 1,157,875.20 × 273,228.80
  4. Step 4: Simplify right side
    772,121.60x = 316,364,851,445.76
  5. Step 5: Solve for x
    x = 316,364,851,445.76/772,121.60
  6. Step 6: Final answer
    x = 409,734.49

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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.