Home / 999,665.82-1,379,504.52-570,084.21

Finding the Fourth Proportional to 999,665.82, 1,379,504.52 and 570,084.21

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Solution

The fourth proportional to 999,665.82, 1,379,504.52 and 570,084.21 is: 786,696.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,665.82 : 1,379,504.52 = 570,084.21 : x
  2. Step 2: Convert to fraction form
    999,665.82/1,379,504.52 = 570,084.21/x
  3. Step 3: Cross multiply
    999,665.82x = 1,379,504.52 × 570,084.21
  4. Step 4: Simplify right side
    999,665.82x = 786,433,744,475.63
  5. Step 5: Solve for x
    x = 786,433,744,475.63/999,665.82
  6. Step 6: Final answer
    x = 786,696.64

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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.