Home / 1,490,457.40-2,233,061.70-1,222,768.60

Finding the Fourth Proportional to 1,490,457.40, 2,233,061.70 and 1,222,768.60

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Solution

The fourth proportional to 1,490,457.40, 2,233,061.70 and 1,222,768.60 is: 1,831,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,457.40 : 2,233,061.70 = 1,222,768.60 : x
  2. Step 2: Convert to fraction form
    1,490,457.40/2,233,061.70 = 1,222,768.60/x
  3. Step 3: Cross multiply
    1,490,457.40x = 2,233,061.70 × 1,222,768.60
  4. Step 4: Simplify right side
    1,490,457.40x = 2,730,517,728,622.62
  5. Step 5: Solve for x
    x = 2,730,517,728,622.62/1,490,457.40
  6. Step 6: Final answer
    x = 1,831,999.85

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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.