Home / 1,220,241.89-1,684,014.87-676,400.60

Finding the Fourth Proportional to 1,220,241.89, 1,684,014.87 and 676,400.60

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Solution

The fourth proportional to 1,220,241.89, 1,684,014.87 and 676,400.60 is: 933,477.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,241.89 : 1,684,014.87 = 676,400.60 : x
  2. Step 2: Convert to fraction form
    1,220,241.89/1,684,014.87 = 676,400.60/x
  3. Step 3: Cross multiply
    1,220,241.89x = 1,684,014.87 × 676,400.60
  4. Step 4: Simplify right side
    1,220,241.89x = 1,139,068,670,150.46
  5. Step 5: Solve for x
    x = 1,139,068,670,150.46/1,220,241.89
  6. Step 6: Final answer
    x = 933,477.76

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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.