Home / 726,482.76-1,089,713.20-326,841.32

Finding the Fourth Proportional to 726,482.76, 1,089,713.20 and 326,841.32

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Solution

The fourth proportional to 726,482.76, 1,089,713.20 and 326,841.32 is: 490,257.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,482.76 : 1,089,713.20 = 326,841.32 : x
  2. Step 2: Convert to fraction form
    726,482.76/1,089,713.20 = 326,841.32/x
  3. Step 3: Cross multiply
    726,482.76x = 1,089,713.20 × 326,841.32
  4. Step 4: Simplify right side
    726,482.76x = 356,163,300,709.42
  5. Step 5: Solve for x
    x = 356,163,300,709.42/726,482.76
  6. Step 6: Final answer
    x = 490,257.06

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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.