Home / 939,912.40-1,409,868.60-229,931.20

Finding the Fourth Proportional to 939,912.40, 1,409,868.60 and 229,931.20

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Solution

The fourth proportional to 939,912.40, 1,409,868.60 and 229,931.20 is: 344,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,912.40 : 1,409,868.60 = 229,931.20 : x
  2. Step 2: Convert to fraction form
    939,912.40/1,409,868.60 = 229,931.20/x
  3. Step 3: Cross multiply
    939,912.40x = 1,409,868.60 × 229,931.20
  4. Step 4: Simplify right side
    939,912.40x = 324,172,779,040.32
  5. Step 5: Solve for x
    x = 324,172,779,040.32/939,912.40
  6. Step 6: Final answer
    x = 344,896.80

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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.