Home / 1,079,722.40-1,621,042.80-630,903.20

Finding the Fourth Proportional to 1,079,722.40, 1,621,042.80 and 630,903.20

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Solution

The fourth proportional to 1,079,722.40, 1,621,042.80 and 630,903.20 is: 947,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,722.40 : 1,621,042.80 = 630,903.20 : x
  2. Step 2: Convert to fraction form
    1,079,722.40/1,621,042.80 = 630,903.20/x
  3. Step 3: Cross multiply
    1,079,722.40x = 1,621,042.80 × 630,903.20
  4. Step 4: Simplify right side
    1,079,722.40x = 1,022,721,089,856.96
  5. Step 5: Solve for x
    x = 1,022,721,089,856.96/1,079,722.40
  6. Step 6: Final answer
    x = 947,207.44

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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.