Home / 1,216,188.56-1,678,813.80-1,088,643.60

Finding the Fourth Proportional to 1,216,188.56, 1,678,813.80 and 1,088,643.60

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Solution

The fourth proportional to 1,216,188.56, 1,678,813.80 and 1,088,643.60 is: 1,502,752.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,188.56 : 1,678,813.80 = 1,088,643.60 : x
  2. Step 2: Convert to fraction form
    1,216,188.56/1,678,813.80 = 1,088,643.60/x
  3. Step 3: Cross multiply
    1,216,188.56x = 1,678,813.80 × 1,088,643.60
  4. Step 4: Simplify right side
    1,216,188.56x = 1,827,629,898,961.68
  5. Step 5: Solve for x
    x = 1,827,629,898,961.68/1,216,188.56
  6. Step 6: Final answer
    x = 1,502,752.09

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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.