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Finding the Fourth Proportional to 505,071.23, 697,013.00 and 275,643.27

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Solution

The fourth proportional to 505,071.23, 697,013.00 and 275,643.27 is: 380,395.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,071.23 : 697,013.00 = 275,643.27 : x
  2. Step 2: Convert to fraction form
    505,071.23/697,013.00 = 275,643.27/x
  3. Step 3: Cross multiply
    505,071.23x = 697,013.00 × 275,643.27
  4. Step 4: Simplify right side
    505,071.23x = 192,126,941,174.29
  5. Step 5: Solve for x
    x = 192,126,941,174.29/505,071.23
  6. Step 6: Final answer
    x = 380,395.73

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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.