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Finding the Fourth Proportional to 612,852.48, 919,317.60 and 297,224.64

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Solution

The fourth proportional to 612,852.48, 919,317.60 and 297,224.64 is: 445,855.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,852.48 : 919,317.60 = 297,224.64 : x
  2. Step 2: Convert to fraction form
    612,852.48/919,317.60 = 297,224.64/x
  3. Step 3: Cross multiply
    612,852.48x = 919,317.60 × 297,224.64
  4. Step 4: Simplify right side
    612,852.48x = 273,243,842,705.66
  5. Step 5: Solve for x
    x = 273,243,842,705.66/612,852.48
  6. Step 6: Final answer
    x = 445,855.82

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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.