Home / 3,219,904.72-4,829,807.90-823,729.12

Finding the Fourth Proportional to 3,219,904.72, 4,829,807.90 and 823,729.12

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Solution

The fourth proportional to 3,219,904.72, 4,829,807.90 and 823,729.12 is: 1,235,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219,904.72 : 4,829,807.90 = 823,729.12 : x
  2. Step 2: Convert to fraction form
    3,219,904.72/4,829,807.90 = 823,729.12/x
  3. Step 3: Cross multiply
    3,219,904.72x = 4,829,807.90 × 823,729.12
  4. Step 4: Simplify right side
    3,219,904.72x = 3,978,453,411,236.05
  5. Step 5: Solve for x
    x = 3,978,453,411,236.05/3,219,904.72
  6. Step 6: Final answer
    x = 1,235,581.10

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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.