Home / 999,678.17-1,379,551.70-540,791.60

Finding the Fourth Proportional to 999,678.17, 1,379,551.70 and 540,791.60

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Solution

The fourth proportional to 999,678.17, 1,379,551.70 and 540,791.60 is: 746,290.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,678.17 : 1,379,551.70 = 540,791.60 : x
  2. Step 2: Convert to fraction form
    999,678.17/1,379,551.70 = 540,791.60/x
  3. Step 3: Cross multiply
    999,678.17x = 1,379,551.70 × 540,791.60
  4. Step 4: Simplify right side
    999,678.17x = 746,049,961,524.00
  5. Step 5: Solve for x
    x = 746,049,961,524.00/999,678.17
  6. Step 6: Final answer
    x = 746,290.14

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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.