Home / 1,290,783.56-1,936,267.82-344,149.32

Finding the Fourth Proportional to 1,290,783.56, 1,936,267.82 and 344,149.32

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Solution

The fourth proportional to 1,290,783.56, 1,936,267.82 and 344,149.32 is: 516,248.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,783.56 : 1,936,267.82 = 344,149.32 : x
  2. Step 2: Convert to fraction form
    1,290,783.56/1,936,267.82 = 344,149.32/x
  3. Step 3: Cross multiply
    1,290,783.56x = 1,936,267.82 × 344,149.32
  4. Step 4: Simplify right side
    1,290,783.56x = 666,365,253,590.88
  5. Step 5: Solve for x
    x = 666,365,253,590.88/1,290,783.56
  6. Step 6: Final answer
    x = 516,248.64

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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.