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Finding the Fourth Proportional to 556,525.36, 834,781.56 and 385,589.44

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Solution

The fourth proportional to 556,525.36, 834,781.56 and 385,589.44 is: 578,379.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,525.36 : 834,781.56 = 385,589.44 : x
  2. Step 2: Convert to fraction form
    556,525.36/834,781.56 = 385,589.44/x
  3. Step 3: Cross multiply
    556,525.36x = 834,781.56 × 385,589.44
  4. Step 4: Simplify right side
    556,525.36x = 321,882,954,242.73
  5. Step 5: Solve for x
    x = 321,882,954,242.73/556,525.36
  6. Step 6: Final answer
    x = 578,379.67

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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.