Home / 1,279,111.23-1,917,654.66-480,303.81

Finding the Fourth Proportional to 1,279,111.23, 1,917,654.66 and 480,303.81

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Solution

The fourth proportional to 1,279,111.23, 1,917,654.66 and 480,303.81 is: 720,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,111.23 : 1,917,654.66 = 480,303.81 : x
  2. Step 2: Convert to fraction form
    1,279,111.23/1,917,654.66 = 480,303.81/x
  3. Step 3: Cross multiply
    1,279,111.23x = 1,917,654.66 × 480,303.81
  4. Step 4: Simplify right side
    1,279,111.23x = 921,056,839,462.26
  5. Step 5: Solve for x
    x = 921,056,839,462.26/1,279,111.23
  6. Step 6: Final answer
    x = 720,075.64

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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.