Home / 1,220,438.48-1,684,995.64-785,050.52

Finding the Fourth Proportional to 1,220,438.48, 1,684,995.64 and 785,050.52

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Solution

The fourth proportional to 1,220,438.48, 1,684,995.64 and 785,050.52 is: 1,083,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,438.48 : 1,684,995.64 = 785,050.52 : x
  2. Step 2: Convert to fraction form
    1,220,438.48/1,684,995.64 = 785,050.52/x
  3. Step 3: Cross multiply
    1,220,438.48x = 1,684,995.64 × 785,050.52
  4. Step 4: Simplify right side
    1,220,438.48x = 1,322,806,703,379.73
  5. Step 5: Solve for x
    x = 1,322,806,703,379.73/1,220,438.48
  6. Step 6: Final answer
    x = 1,083,878.23

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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.