Home / 1,273,207.98-1,909,406.84-420,120.60

Finding the Fourth Proportional to 1,273,207.98, 1,909,406.84 and 420,120.60

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Solution

The fourth proportional to 1,273,207.98, 1,909,406.84 and 420,120.60 is: 630,047.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,207.98 : 1,909,406.84 = 420,120.60 : x
  2. Step 2: Convert to fraction form
    1,273,207.98/1,909,406.84 = 420,120.60/x
  3. Step 3: Cross multiply
    1,273,207.98x = 1,909,406.84 × 420,120.60
  4. Step 4: Simplify right side
    1,273,207.98x = 802,181,147,264.90
  5. Step 5: Solve for x
    x = 802,181,147,264.90/1,273,207.98
  6. Step 6: Final answer
    x = 630,047.22

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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.