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Finding the Fourth Proportional to 931.04, 1,395.78 and 468.26

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Solution

The fourth proportional to 931.04, 1,395.78 and 468.26 is: 702.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    931.04 : 1,395.78 = 468.26 : x
  2. Step 2: Convert to fraction form
    931.04/1,395.78 = 468.26/x
  3. Step 3: Cross multiply
    931.04x = 1,395.78 × 468.26
  4. Step 4: Simplify right side
    931.04x = 653,587.94
  5. Step 5: Solve for x
    x = 653,587.94/931.04
  6. Step 6: Final answer
    x = 702.00

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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.