Home / 1,289,245.24-1,779,213.80-716,285.43

Finding the Fourth Proportional to 1,289,245.24, 1,779,213.80 and 716,285.43

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Solution

The fourth proportional to 1,289,245.24, 1,779,213.80 and 716,285.43 is: 988,504.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,245.24 : 1,779,213.80 = 716,285.43 : x
  2. Step 2: Convert to fraction form
    1,289,245.24/1,779,213.80 = 716,285.43/x
  3. Step 3: Cross multiply
    1,289,245.24x = 1,779,213.80 × 716,285.43
  4. Step 4: Simplify right side
    1,289,245.24x = 1,274,424,921,794.93
  5. Step 5: Solve for x
    x = 1,274,424,921,794.93/1,289,245.24
  6. Step 6: Final answer
    x = 988,504.66

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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.