Home / 1,296,861.26-1,789,661.66-753,130.74

Finding the Fourth Proportional to 1,296,861.26, 1,789,661.66 and 753,130.74

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Solution

The fourth proportional to 1,296,861.26, 1,789,661.66 and 753,130.74 is: 1,039,316.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,861.26 : 1,789,661.66 = 753,130.74 : x
  2. Step 2: Convert to fraction form
    1,296,861.26/1,789,661.66 = 753,130.74/x
  3. Step 3: Cross multiply
    1,296,861.26x = 1,789,661.66 × 753,130.74
  4. Step 4: Simplify right side
    1,296,861.26x = 1,347,849,210,345.43
  5. Step 5: Solve for x
    x = 1,347,849,210,345.43/1,296,861.26
  6. Step 6: Final answer
    x = 1,039,316.43

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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.