Home / 1,300,076.10-1,949,336.55-670,220.10

Finding the Fourth Proportional to 1,300,076.10, 1,949,336.55 and 670,220.10

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Solution

The fourth proportional to 1,300,076.10, 1,949,336.55 and 670,220.10 is: 1,004,929.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,076.10 : 1,949,336.55 = 670,220.10 : x
  2. Step 2: Convert to fraction form
    1,300,076.10/1,949,336.55 = 670,220.10/x
  3. Step 3: Cross multiply
    1,300,076.10x = 1,949,336.55 × 670,220.10
  4. Step 4: Simplify right side
    1,300,076.10x = 1,306,484,537,474.66
  5. Step 5: Solve for x
    x = 1,306,484,537,474.66/1,300,076.10
  6. Step 6: Final answer
    x = 1,004,929.28

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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.