Home / 1,774,012.80-2,660,500.80-636,643.20

Finding the Fourth Proportional to 1,774,012.80, 2,660,500.80 and 636,643.20

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Solution

The fourth proportional to 1,774,012.80, 2,660,500.80 and 636,643.20 is: 954,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774,012.80 : 2,660,500.80 = 636,643.20 : x
  2. Step 2: Convert to fraction form
    1,774,012.80/2,660,500.80 = 636,643.20/x
  3. Step 3: Cross multiply
    1,774,012.80x = 2,660,500.80 × 636,643.20
  4. Step 4: Simplify right side
    1,774,012.80x = 1,693,789,742,914.56
  5. Step 5: Solve for x
    x = 1,693,789,742,914.56/1,774,012.80
  6. Step 6: Final answer
    x = 954,778.76

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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.