Home / 1,296,069.32-1,788,661.64-723,121.92

Finding the Fourth Proportional to 1,296,069.32, 1,788,661.64 and 723,121.92

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Solution

The fourth proportional to 1,296,069.32, 1,788,661.64 and 723,121.92 is: 997,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,069.32 : 1,788,661.64 = 723,121.92 : x
  2. Step 2: Convert to fraction form
    1,296,069.32/1,788,661.64 = 723,121.92/x
  3. Step 3: Cross multiply
    1,296,069.32x = 1,788,661.64 × 723,121.92
  4. Step 4: Simplify right side
    1,296,069.32x = 1,293,420,439,347.15
  5. Step 5: Solve for x
    x = 1,293,420,439,347.15/1,296,069.32
  6. Step 6: Final answer
    x = 997,956.22

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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.