Home / 917,768.78-1,373,705.28-490,235.55

Finding the Fourth Proportional to 917,768.78, 1,373,705.28 and 490,235.55

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Solution

The fourth proportional to 917,768.78, 1,373,705.28 and 490,235.55 is: 733,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,768.78 : 1,373,705.28 = 490,235.55 : x
  2. Step 2: Convert to fraction form
    917,768.78/1,373,705.28 = 490,235.55/x
  3. Step 3: Cross multiply
    917,768.78x = 1,373,705.28 × 490,235.55
  4. Step 4: Simplify right side
    917,768.78x = 673,439,170,468.48
  5. Step 5: Solve for x
    x = 673,439,170,468.48/917,768.78
  6. Step 6: Final answer
    x = 733,778.69

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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.