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Finding the Fourth Proportional to 702.87, 1,054.77 and 292.01

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Solution

The fourth proportional to 702.87, 1,054.77 and 292.01 is: 438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.87 : 1,054.77 = 292.01 : x
  2. Step 2: Convert to fraction form
    702.87/1,054.77 = 292.01/x
  3. Step 3: Cross multiply
    702.87x = 1,054.77 × 292.01
  4. Step 4: Simplify right side
    702.87x = 307,999.48
  5. Step 5: Solve for x
    x = 307,999.48/702.87
  6. Step 6: Final answer
    x = 438.20

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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.