Home / 855,994.50-1,283,988.78-256,953.24

Finding the Fourth Proportional to 855,994.50, 1,283,988.78 and 256,953.24

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Solution

The fourth proportional to 855,994.50, 1,283,988.78 and 256,953.24 is: 385,428.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,994.50 : 1,283,988.78 = 256,953.24 : x
  2. Step 2: Convert to fraction form
    855,994.50/1,283,988.78 = 256,953.24/x
  3. Step 3: Cross multiply
    855,994.50x = 1,283,988.78 × 256,953.24
  4. Step 4: Simplify right side
    855,994.50x = 329,925,077,144.65
  5. Step 5: Solve for x
    x = 329,925,077,144.65/855,994.50
  6. Step 6: Final answer
    x = 385,428.97

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1.5x scale

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.