Home / 705,945.60-1,057,363.20-494,438.40

Finding the Fourth Proportional to 705,945.60, 1,057,363.20 and 494,438.40

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Solution

The fourth proportional to 705,945.60, 1,057,363.20 and 494,438.40 is: 740,568.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,945.60 : 1,057,363.20 = 494,438.40 : x
  2. Step 2: Convert to fraction form
    705,945.60/1,057,363.20 = 494,438.40/x
  3. Step 3: Cross multiply
    705,945.60x = 1,057,363.20 × 494,438.40
  4. Step 4: Simplify right side
    705,945.60x = 522,800,968,826.88
  5. Step 5: Solve for x
    x = 522,800,968,826.88/705,945.60
  6. Step 6: Final answer
    x = 740,568.35

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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.