Home / 1,219,246.08-1,683,143.04-812,025.60

Finding the Fourth Proportional to 1,219,246.08, 1,683,143.04 and 812,025.60

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Solution

The fourth proportional to 1,219,246.08, 1,683,143.04 and 812,025.60 is: 1,120,983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,246.08 : 1,683,143.04 = 812,025.60 : x
  2. Step 2: Convert to fraction form
    1,219,246.08/1,683,143.04 = 812,025.60/x
  3. Step 3: Cross multiply
    1,219,246.08x = 1,683,143.04 × 812,025.60
  4. Step 4: Simplify right side
    1,219,246.08x = 1,366,755,236,941.82
  5. Step 5: Solve for x
    x = 1,366,755,236,941.82/1,219,246.08
  6. Step 6: Final answer
    x = 1,120,983.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.