Home / 999,968.82-1,379,922.93-570,388.02

Finding the Fourth Proportional to 999,968.82, 1,379,922.93 and 570,388.02

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Solution

The fourth proportional to 999,968.82, 1,379,922.93 and 570,388.02 is: 787,116.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,968.82 : 1,379,922.93 = 570,388.02 : x
  2. Step 2: Convert to fraction form
    999,968.82/1,379,922.93 = 570,388.02/x
  3. Step 3: Cross multiply
    999,968.82x = 1,379,922.93 × 570,388.02
  4. Step 4: Simplify right side
    999,968.82x = 787,091,507,795.30
  5. Step 5: Solve for x
    x = 787,091,507,795.30/999,968.82
  6. Step 6: Final answer
    x = 787,116.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.