Home / 1,339,840.80-2,007,428.40-866,282.40

Finding the Fourth Proportional to 1,339,840.80, 2,007,428.40 and 866,282.40

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Solution

The fourth proportional to 1,339,840.80, 2,007,428.40 and 866,282.40 is: 1,297,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,840.80 : 2,007,428.40 = 866,282.40 : x
  2. Step 2: Convert to fraction form
    1,339,840.80/2,007,428.40 = 866,282.40/x
  3. Step 3: Cross multiply
    1,339,840.80x = 2,007,428.40 × 866,282.40
  4. Step 4: Simplify right side
    1,339,840.80x = 1,738,999,892,180.16
  5. Step 5: Solve for x
    x = 1,738,999,892,180.16/1,339,840.80
  6. Step 6: Final answer
    x = 1,297,915.31

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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.