Home / 709,131.28-1,063,688.72-203,704.64

Finding the Fourth Proportional to 709,131.28, 1,063,688.72 and 203,704.64

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Solution

The fourth proportional to 709,131.28, 1,063,688.72 and 203,704.64 is: 305,554.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,131.28 : 1,063,688.72 = 203,704.64 : x
  2. Step 2: Convert to fraction form
    709,131.28/1,063,688.72 = 203,704.64/x
  3. Step 3: Cross multiply
    709,131.28x = 1,063,688.72 × 203,704.64
  4. Step 4: Simplify right side
    709,131.28x = 216,678,327,779.66
  5. Step 5: Solve for x
    x = 216,678,327,779.66/709,131.28
  6. Step 6: Final answer
    x = 305,554.60

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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.