Home / 1,319,874.72-1,821,428.32-716,262.72

Finding the Fourth Proportional to 1,319,874.72, 1,821,428.32 and 716,262.72

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Solution

The fourth proportional to 1,319,874.72, 1,821,428.32 and 716,262.72 is: 988,443.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,874.72 : 1,821,428.32 = 716,262.72 : x
  2. Step 2: Convert to fraction form
    1,319,874.72/1,821,428.32 = 716,262.72/x
  3. Step 3: Cross multiply
    1,319,874.72x = 1,821,428.32 × 716,262.72
  4. Step 4: Simplify right side
    1,319,874.72x = 1,304,621,202,768.23
  5. Step 5: Solve for x
    x = 1,304,621,202,768.23/1,319,874.72
  6. Step 6: Final answer
    x = 988,443.21

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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.