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Finding the Fourth Proportional to 978,180.44, 1,349,871.72 and 548,459.24

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Solution

The fourth proportional to 978,180.44, 1,349,871.72 and 548,459.24 is: 756,864.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,180.44 : 1,349,871.72 = 548,459.24 : x
  2. Step 2: Convert to fraction form
    978,180.44/1,349,871.72 = 548,459.24/x
  3. Step 3: Cross multiply
    978,180.44x = 1,349,871.72 × 548,459.24
  4. Step 4: Simplify right side
    978,180.44x = 740,349,617,648.69
  5. Step 5: Solve for x
    x = 740,349,617,648.69/978,180.44
  6. Step 6: Final answer
    x = 756,864.06

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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.