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Finding the Fourth Proportional to 1,233.99, 1,702.95 and 710.01

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Solution

The fourth proportional to 1,233.99, 1,702.95 and 710.01 is: 979.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.99 : 1,702.95 = 710.01 : x
  2. Step 2: Convert to fraction form
    1,233.99/1,702.95 = 710.01/x
  3. Step 3: Cross multiply
    1,233.99x = 1,702.95 × 710.01
  4. Step 4: Simplify right side
    1,233.99x = 1,209,111.53
  5. Step 5: Solve for x
    x = 1,209,111.53/1,233.99
  6. Step 6: Final answer
    x = 979.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.