Home / 1,218,319.56-1,827,601.74-419,495.40

Finding the Fourth Proportional to 1,218,319.56, 1,827,601.74 and 419,495.40

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Solution

The fourth proportional to 1,218,319.56, 1,827,601.74 and 419,495.40 is: 629,285.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,319.56 : 1,827,601.74 = 419,495.40 : x
  2. Step 2: Convert to fraction form
    1,218,319.56/1,827,601.74 = 419,495.40/x
  3. Step 3: Cross multiply
    1,218,319.56x = 1,827,601.74 × 419,495.40
  4. Step 4: Simplify right side
    1,218,319.56x = 766,670,522,962.00
  5. Step 5: Solve for x
    x = 766,670,522,962.00/1,218,319.56
  6. Step 6: Final answer
    x = 629,285.25

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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.