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Finding the Fourth Proportional to 926.04, 1,386.30 and 559.74

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Solution

The fourth proportional to 926.04, 1,386.30 and 559.74 is: 837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.04 : 1,386.30 = 559.74 : x
  2. Step 2: Convert to fraction form
    926.04/1,386.30 = 559.74/x
  3. Step 3: Cross multiply
    926.04x = 1,386.30 × 559.74
  4. Step 4: Simplify right side
    926.04x = 775,967.56
  5. Step 5: Solve for x
    x = 775,967.56/926.04
  6. Step 6: Final answer
    x = 837.94

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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.