Home / 1,439,902.40-2,159,270.40-492,785.60

Finding the Fourth Proportional to 1,439,902.40, 2,159,270.40 and 492,785.60

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Solution

The fourth proportional to 1,439,902.40, 2,159,270.40 and 492,785.60 is: 738,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,902.40 : 2,159,270.40 = 492,785.60 : x
  2. Step 2: Convert to fraction form
    1,439,902.40/2,159,270.40 = 492,785.60/x
  3. Step 3: Cross multiply
    1,439,902.40x = 2,159,270.40 × 492,785.60
  4. Step 4: Simplify right side
    1,439,902.40x = 1,064,057,359,626.24
  5. Step 5: Solve for x
    x = 1,064,057,359,626.24/1,439,902.40
  6. Step 6: Final answer
    x = 738,978.81

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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.