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Finding the Fourth Proportional to 926.01, 1,386.09 and 559.62

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Solution

The fourth proportional to 926.01, 1,386.09 and 559.62 is: 837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.01 : 1,386.09 = 559.62 : x
  2. Step 2: Convert to fraction form
    926.01/1,386.09 = 559.62/x
  3. Step 3: Cross multiply
    926.01x = 1,386.09 × 559.62
  4. Step 4: Simplify right side
    926.01x = 775,683.69
  5. Step 5: Solve for x
    x = 775,683.69/926.01
  6. Step 6: Final answer
    x = 837.66

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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.