Home / 1,244,772.90-1,866,904.20-345,988.80

Finding the Fourth Proportional to 1,244,772.90, 1,866,904.20 and 345,988.80

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Solution

The fourth proportional to 1,244,772.90, 1,866,904.20 and 345,988.80 is: 518,912.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,772.90 : 1,866,904.20 = 345,988.80 : x
  2. Step 2: Convert to fraction form
    1,244,772.90/1,866,904.20 = 345,988.80/x
  3. Step 3: Cross multiply
    1,244,772.90x = 1,866,904.20 × 345,988.80
  4. Step 4: Simplify right side
    1,244,772.90x = 645,927,943,872.96
  5. Step 5: Solve for x
    x = 645,927,943,872.96/1,244,772.90
  6. Step 6: Final answer
    x = 518,912.28

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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.