Home / 815,080.32-1,221,029.76-533,744.64

Finding the Fourth Proportional to 815,080.32, 1,221,029.76 and 533,744.64

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Solution

The fourth proportional to 815,080.32, 1,221,029.76 and 533,744.64 is: 799,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,080.32 : 1,221,029.76 = 533,744.64 : x
  2. Step 2: Convert to fraction form
    815,080.32/1,221,029.76 = 533,744.64/x
  3. Step 3: Cross multiply
    815,080.32x = 1,221,029.76 × 533,744.64
  4. Step 4: Simplify right side
    815,080.32x = 651,718,089,680.49
  5. Step 5: Solve for x
    x = 651,718,089,680.49/815,080.32
  6. Step 6: Final answer
    x = 799,575.30

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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.