Home / 855,931.32-1,283,893.92-256,889.88

Finding the Fourth Proportional to 855,931.32, 1,283,893.92 and 256,889.88

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Solution

The fourth proportional to 855,931.32, 1,283,893.92 and 256,889.88 is: 385,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,931.32 : 1,283,893.92 = 256,889.88 : x
  2. Step 2: Convert to fraction form
    855,931.32/1,283,893.92 = 256,889.88/x
  3. Step 3: Cross multiply
    855,931.32x = 1,283,893.92 × 256,889.88
  4. Step 4: Simplify right side
    855,931.32x = 329,819,355,041.53
  5. Step 5: Solve for x
    x = 329,819,355,041.53/855,931.32
  6. Step 6: Final answer
    x = 385,333.90

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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.