Home / 1,393,856.60-2,090,784.90-862,415.60

Finding the Fourth Proportional to 1,393,856.60, 2,090,784.90 and 862,415.60

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Solution

The fourth proportional to 1,393,856.60, 2,090,784.90 and 862,415.60 is: 1,293,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,856.60 : 2,090,784.90 = 862,415.60 : x
  2. Step 2: Convert to fraction form
    1,393,856.60/2,090,784.90 = 862,415.60/x
  3. Step 3: Cross multiply
    1,393,856.60x = 2,090,784.90 × 862,415.60
  4. Step 4: Simplify right side
    1,393,856.60x = 1,803,125,514,004.44
  5. Step 5: Solve for x
    x = 1,803,125,514,004.44/1,393,856.60
  6. Step 6: Final answer
    x = 1,293,623.40

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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.