Home / 1,440,086.40-2,160,129.60-909,957.60

Finding the Fourth Proportional to 1,440,086.40, 2,160,129.60 and 909,957.60

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Solution

The fourth proportional to 1,440,086.40, 2,160,129.60 and 909,957.60 is: 1,364,936.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,086.40 : 2,160,129.60 = 909,957.60 : x
  2. Step 2: Convert to fraction form
    1,440,086.40/2,160,129.60 = 909,957.60/x
  3. Step 3: Cross multiply
    1,440,086.40x = 2,160,129.60 × 909,957.60
  4. Step 4: Simplify right side
    1,440,086.40x = 1,965,626,346,504.96
  5. Step 5: Solve for x
    x = 1,965,626,346,504.96/1,440,086.40
  6. Step 6: Final answer
    x = 1,364,936.40

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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.