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Finding the Fourth Proportional to 926.51, 1,389.77 and 464.18

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Solution

The fourth proportional to 926.51, 1,389.77 and 464.18 is: 696.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.51 : 1,389.77 = 464.18 : x
  2. Step 2: Convert to fraction form
    926.51/1,389.77 = 464.18/x
  3. Step 3: Cross multiply
    926.51x = 1,389.77 × 464.18
  4. Step 4: Simplify right side
    926.51x = 645,094.17
  5. Step 5: Solve for x
    x = 645,094.17/926.51
  6. Step 6: Final answer
    x = 696.27

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Double scale
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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.