Home / 781,868.52-1,078,311.78-601,018.60

Finding the Fourth Proportional to 781,868.52, 1,078,311.78 and 601,018.60

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Solution

The fourth proportional to 781,868.52, 1,078,311.78 and 601,018.60 is: 828,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,868.52 : 1,078,311.78 = 601,018.60 : x
  2. Step 2: Convert to fraction form
    781,868.52/1,078,311.78 = 601,018.60/x
  3. Step 3: Cross multiply
    781,868.52x = 1,078,311.78 × 601,018.60
  4. Step 4: Simplify right side
    781,868.52x = 648,085,436,379.11
  5. Step 5: Solve for x
    x = 648,085,436,379.11/781,868.52
  6. Step 6: Final answer
    x = 828,893.12

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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.