Home / 821,746.20-1,232,751.78-253,127.22

Finding the Fourth Proportional to 821,746.20, 1,232,751.78 and 253,127.22

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Solution

The fourth proportional to 821,746.20, 1,232,751.78 and 253,127.22 is: 379,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,746.20 : 1,232,751.78 = 253,127.22 : x
  2. Step 2: Convert to fraction form
    821,746.20/1,232,751.78 = 253,127.22/x
  3. Step 3: Cross multiply
    821,746.20x = 1,232,751.78 × 253,127.22
  4. Step 4: Simplify right side
    821,746.20x = 312,043,031,021.45
  5. Step 5: Solve for x
    x = 312,043,031,021.45/821,746.20
  6. Step 6: Final answer
    x = 379,731.64

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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.