Home / 1,049,640.60-1,572,128.10-812,213.40

Finding the Fourth Proportional to 1,049,640.60, 1,572,128.10 and 812,213.40

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Solution

The fourth proportional to 1,049,640.60, 1,572,128.10 and 812,213.40 is: 1,216,514.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,640.60 : 1,572,128.10 = 812,213.40 : x
  2. Step 2: Convert to fraction form
    1,049,640.60/1,572,128.10 = 812,213.40/x
  3. Step 3: Cross multiply
    1,049,640.60x = 1,572,128.10 × 812,213.40
  4. Step 4: Simplify right side
    1,049,640.60x = 1,276,903,509,336.54
  5. Step 5: Solve for x
    x = 1,276,903,509,336.54/1,049,640.60
  6. Step 6: Final answer
    x = 1,216,514.98

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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.