Home / 513,110.40-769,665.60-180,643.20

Finding the Fourth Proportional to 513,110.40, 769,665.60 and 180,643.20

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Solution

The fourth proportional to 513,110.40, 769,665.60 and 180,643.20 is: 270,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,110.40 : 769,665.60 = 180,643.20 : x
  2. Step 2: Convert to fraction form
    513,110.40/769,665.60 = 180,643.20/x
  3. Step 3: Cross multiply
    513,110.40x = 769,665.60 × 180,643.20
  4. Step 4: Simplify right side
    513,110.40x = 139,034,856,913.92
  5. Step 5: Solve for x
    x = 139,034,856,913.92/513,110.40
  6. Step 6: Final answer
    x = 270,964.80

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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.