Home / 1,531,817.20-2,112,531.60-958,909.60

Finding the Fourth Proportional to 1,531,817.20, 2,112,531.60 and 958,909.60

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Solution

The fourth proportional to 1,531,817.20, 2,112,531.60 and 958,909.60 is: 1,322,433.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,817.20 : 2,112,531.60 = 958,909.60 : x
  2. Step 2: Convert to fraction form
    1,531,817.20/2,112,531.60 = 958,909.60/x
  3. Step 3: Cross multiply
    1,531,817.20x = 2,112,531.60 × 958,909.60
  4. Step 4: Simplify right side
    1,531,817.20x = 2,025,726,831,543.36
  5. Step 5: Solve for x
    x = 2,025,726,831,543.36/1,531,817.20
  6. Step 6: Final answer
    x = 1,322,433.79

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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.