Home / 690,051.14-1,035,189.05-203,782.47

Finding the Fourth Proportional to 690,051.14, 1,035,189.05 and 203,782.47

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Solution

The fourth proportional to 690,051.14, 1,035,189.05 and 203,782.47 is: 305,706.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,051.14 : 1,035,189.05 = 203,782.47 : x
  2. Step 2: Convert to fraction form
    690,051.14/1,035,189.05 = 203,782.47/x
  3. Step 3: Cross multiply
    690,051.14x = 1,035,189.05 × 203,782.47
  4. Step 4: Simplify right side
    690,051.14x = 210,953,381,525.95
  5. Step 5: Solve for x
    x = 210,953,381,525.95/690,051.14
  6. Step 6: Final answer
    x = 305,706.88

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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.