Home / 862,571.76-1,293,935.40-330,071.28

Finding the Fourth Proportional to 862,571.76, 1,293,935.40 and 330,071.28

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Solution

The fourth proportional to 862,571.76, 1,293,935.40 and 330,071.28 is: 495,136.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,571.76 : 1,293,935.40 = 330,071.28 : x
  2. Step 2: Convert to fraction form
    862,571.76/1,293,935.40 = 330,071.28/x
  3. Step 3: Cross multiply
    862,571.76x = 1,293,935.40 × 330,071.28
  4. Step 4: Simplify right side
    862,571.76x = 427,090,913,715.31
  5. Step 5: Solve for x
    x = 427,090,913,715.31/862,571.76
  6. Step 6: Final answer
    x = 495,136.68

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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.