Home / 855,973.32-1,283,956.89-256,931.88

Finding the Fourth Proportional to 855,973.32, 1,283,956.89 and 256,931.88

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Solution

The fourth proportional to 855,973.32, 1,283,956.89 and 256,931.88 is: 385,396.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,973.32 : 1,283,956.89 = 256,931.88 : x
  2. Step 2: Convert to fraction form
    855,973.32/1,283,956.89 = 256,931.88/x
  3. Step 3: Cross multiply
    855,973.32x = 1,283,956.89 × 256,931.88
  4. Step 4: Simplify right side
    855,973.32x = 329,889,457,586.65
  5. Step 5: Solve for x
    x = 329,889,457,586.65/855,973.32
  6. Step 6: Final answer
    x = 385,396.89

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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.