Home / 939,589.60-1,409,380.41-340,410.28

Finding the Fourth Proportional to 939,589.60, 1,409,380.41 and 340,410.28

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Solution

The fourth proportional to 939,589.60, 1,409,380.41 and 340,410.28 is: 510,613.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,589.60 : 1,409,380.41 = 340,410.28 : x
  2. Step 2: Convert to fraction form
    939,589.60/1,409,380.41 = 340,410.28/x
  3. Step 3: Cross multiply
    939,589.60x = 1,409,380.41 × 340,410.28
  4. Step 4: Simplify right side
    939,589.60x = 479,767,579,994.62
  5. Step 5: Solve for x
    x = 479,767,579,994.62/939,589.60
  6. Step 6: Final answer
    x = 510,613.97

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1.5x scale

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.