Home / 3,219,875.28-4,829,978.36-823,740.68

Finding the Fourth Proportional to 3,219,875.28, 4,829,978.36 and 823,740.68

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Solution

The fourth proportional to 3,219,875.28, 4,829,978.36 and 823,740.68 is: 1,235,653.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219,875.28 : 4,829,978.36 = 823,740.68 : x
  2. Step 2: Convert to fraction form
    3,219,875.28/4,829,978.36 = 823,740.68/x
  3. Step 3: Cross multiply
    3,219,875.28x = 4,829,978.36 × 823,740.68
  4. Step 4: Simplify right side
    3,219,875.28x = 3,978,649,658,651.69
  5. Step 5: Solve for x
    x = 3,978,649,658,651.69/3,219,875.28
  6. Step 6: Final answer
    x = 1,235,653.34

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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.