Home / 1,216,186.56-1,678,811.04-1,088,641.60

Finding the Fourth Proportional to 1,216,186.56, 1,678,811.04 and 1,088,641.60

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Solution

The fourth proportional to 1,216,186.56, 1,678,811.04 and 1,088,641.60 is: 1,502,749.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,186.56 : 1,678,811.04 = 1,088,641.60 : x
  2. Step 2: Convert to fraction form
    1,216,186.56/1,678,811.04 = 1,088,641.60/x
  3. Step 3: Cross multiply
    1,216,186.56x = 1,678,811.04 × 1,088,641.60
  4. Step 4: Simplify right side
    1,216,186.56x = 1,827,623,536,683.26
  5. Step 5: Solve for x
    x = 1,827,623,536,683.26/1,216,186.56
  6. Step 6: Final answer
    x = 1,502,749.33

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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.