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Finding the Fourth Proportional to 978,509.32, 1,465,853.88 and 674,185.48

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Solution

The fourth proportional to 978,509.32, 1,465,853.88 and 674,185.48 is: 1,009,962.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,509.32 : 1,465,853.88 = 674,185.48 : x
  2. Step 2: Convert to fraction form
    978,509.32/1,465,853.88 = 674,185.48/x
  3. Step 3: Cross multiply
    978,509.32x = 1,465,853.88 × 674,185.48
  4. Step 4: Simplify right side
    978,509.32x = 988,257,401,697.66
  5. Step 5: Solve for x
    x = 988,257,401,697.66/978,509.32
  6. Step 6: Final answer
    x = 1,009,962.18

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