Home / 289,884.40-434,826.60-268,889.20

Finding the Fourth Proportional to 289,884.40, 434,826.60 and 268,889.20

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Solution

The fourth proportional to 289,884.40, 434,826.60 and 268,889.20 is: 403,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,884.40 : 434,826.60 = 268,889.20 : x
  2. Step 2: Convert to fraction form
    289,884.40/434,826.60 = 268,889.20/x
  3. Step 3: Cross multiply
    289,884.40x = 434,826.60 × 268,889.20
  4. Step 4: Simplify right side
    289,884.40x = 116,920,176,612.72
  5. Step 5: Solve for x
    x = 116,920,176,612.72/289,884.40
  6. Step 6: Final answer
    x = 403,333.80

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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.