Home / 3,210,000.30-4,815,000.45-1,079,376.30

Finding the Fourth Proportional to 3,210,000.30, 4,815,000.45 and 1,079,376.30

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Solution

The fourth proportional to 3,210,000.30, 4,815,000.45 and 1,079,376.30 is: 1,619,064.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210,000.30 : 4,815,000.45 = 1,079,376.30 : x
  2. Step 2: Convert to fraction form
    3,210,000.30/4,815,000.45 = 1,079,376.30/x
  3. Step 3: Cross multiply
    3,210,000.30x = 4,815,000.45 × 1,079,376.30
  4. Step 4: Simplify right side
    3,210,000.30x = 5,197,197,370,219.34
  5. Step 5: Solve for x
    x = 5,197,197,370,219.34/3,210,000.30
  6. Step 6: Final answer
    x = 1,619,064.45

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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.