Home / 828,380.64-1,240,749.60-684,596.40

Finding the Fourth Proportional to 828,380.64, 1,240,749.60 and 684,596.40

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Solution

The fourth proportional to 828,380.64, 1,240,749.60 and 684,596.40 is: 1,025,389.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,380.64 : 1,240,749.60 = 684,596.40 : x
  2. Step 2: Convert to fraction form
    828,380.64/1,240,749.60 = 684,596.40/x
  3. Step 3: Cross multiply
    828,380.64x = 1,240,749.60 × 684,596.40
  4. Step 4: Simplify right side
    828,380.64x = 849,412,709,461.44
  5. Step 5: Solve for x
    x = 849,412,709,461.44/828,380.64
  6. Step 6: Final answer
    x = 1,025,389.38

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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.