Home / 1,296,763.32-1,789,909.74-753,022.20

Finding the Fourth Proportional to 1,296,763.32, 1,789,909.74 and 753,022.20

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Solution

The fourth proportional to 1,296,763.32, 1,789,909.74 and 753,022.20 is: 1,039,389.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,763.32 : 1,789,909.74 = 753,022.20 : x
  2. Step 2: Convert to fraction form
    1,296,763.32/1,789,909.74 = 753,022.20/x
  3. Step 3: Cross multiply
    1,296,763.32x = 1,789,909.74 × 753,022.20
  4. Step 4: Simplify right side
    1,296,763.32x = 1,347,841,770,216.23
  5. Step 5: Solve for x
    x = 1,347,841,770,216.23/1,296,763.32
  6. Step 6: Final answer
    x = 1,039,389.18

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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.