Home / 389,050.44-583,575.60-300,433.20

Finding the Fourth Proportional to 389,050.44, 583,575.60 and 300,433.20

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Solution

The fourth proportional to 389,050.44, 583,575.60 and 300,433.20 is: 450,649.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,050.44 : 583,575.60 = 300,433.20 : x
  2. Step 2: Convert to fraction form
    389,050.44/583,575.60 = 300,433.20/x
  3. Step 3: Cross multiply
    389,050.44x = 583,575.60 × 300,433.20
  4. Step 4: Simplify right side
    389,050.44x = 175,325,484,949.92
  5. Step 5: Solve for x
    x = 175,325,484,949.92/389,050.44
  6. Step 6: Final answer
    x = 450,649.75

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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.