Home / 1,197,235.62-1,650,839.13-978,768.90

Finding the Fourth Proportional to 1,197,235.62, 1,650,839.13 and 978,768.90

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Solution

The fourth proportional to 1,197,235.62, 1,650,839.13 and 978,768.90 is: 1,349,600.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,235.62 : 1,650,839.13 = 978,768.90 : x
  2. Step 2: Convert to fraction form
    1,197,235.62/1,650,839.13 = 978,768.90/x
  3. Step 3: Cross multiply
    1,197,235.62x = 1,650,839.13 × 978,768.90
  4. Step 4: Simplify right side
    1,197,235.62x = 1,615,789,999,347.06
  5. Step 5: Solve for x
    x = 1,615,789,999,347.06/1,197,235.62
  6. Step 6: Final answer
    x = 1,349,600.67

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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.