Home / 855,995.50-1,283,990.28-256,954.24

Finding the Fourth Proportional to 855,995.50, 1,283,990.28 and 256,954.24

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Solution

The fourth proportional to 855,995.50, 1,283,990.28 and 256,954.24 is: 385,430.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,995.50 : 1,283,990.28 = 256,954.24 : x
  2. Step 2: Convert to fraction form
    855,995.50/1,283,990.28 = 256,954.24/x
  3. Step 3: Cross multiply
    855,995.50x = 1,283,990.28 × 256,954.24
  4. Step 4: Simplify right side
    855,995.50x = 329,926,746,564.79
  5. Step 5: Solve for x
    x = 329,926,746,564.79/855,995.50
  6. Step 6: Final answer
    x = 385,430.47

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Double scale
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Similar ratio
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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.