Home / 1,197,439.20-1,796,408.40-398,968.80

Finding the Fourth Proportional to 1,197,439.20, 1,796,408.40 and 398,968.80

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Solution

The fourth proportional to 1,197,439.20, 1,796,408.40 and 398,968.80 is: 598,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,439.20 : 1,796,408.40 = 398,968.80 : x
  2. Step 2: Convert to fraction form
    1,197,439.20/1,796,408.40 = 398,968.80/x
  3. Step 3: Cross multiply
    1,197,439.20x = 1,796,408.40 × 398,968.80
  4. Step 4: Simplify right side
    1,197,439.20x = 716,710,903,657.92
  5. Step 5: Solve for x
    x = 716,710,903,657.92/1,197,439.20
  6. Step 6: Final answer
    x = 598,536.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.