Home / 1,110,772.80-1,666,936.80-480,139.20

Finding the Fourth Proportional to 1,110,772.80, 1,666,936.80 and 480,139.20

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Solution

The fourth proportional to 1,110,772.80, 1,666,936.80 and 480,139.20 is: 720,544.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,772.80 : 1,666,936.80 = 480,139.20 : x
  2. Step 2: Convert to fraction form
    1,110,772.80/1,666,936.80 = 480,139.20/x
  3. Step 3: Cross multiply
    1,110,772.80x = 1,666,936.80 × 480,139.20
  4. Step 4: Simplify right side
    1,110,772.80x = 800,361,701,602.56
  5. Step 5: Solve for x
    x = 800,361,701,602.56/1,110,772.80
  6. Step 6: Final answer
    x = 720,544.92

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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.