Home / 260,622.72-390,926.40-73,631.04

Finding the Fourth Proportional to 260,622.72, 390,926.40 and 73,631.04

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Solution

The fourth proportional to 260,622.72, 390,926.40 and 73,631.04 is: 110,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,622.72 : 390,926.40 = 73,631.04 : x
  2. Step 2: Convert to fraction form
    260,622.72/390,926.40 = 73,631.04/x
  3. Step 3: Cross multiply
    260,622.72x = 390,926.40 × 73,631.04
  4. Step 4: Simplify right side
    260,622.72x = 28,784,317,395.46
  5. Step 5: Solve for x
    x = 28,784,317,395.46/260,622.72
  6. Step 6: Final answer
    x = 110,444.39

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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.