Home / 939,316.55-1,408,971.18-340,137.56

Finding the Fourth Proportional to 939,316.55, 1,408,971.18 and 340,137.56

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Solution

The fourth proportional to 939,316.55, 1,408,971.18 and 340,137.56 is: 510,205.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,316.55 : 1,408,971.18 = 340,137.56 : x
  2. Step 2: Convert to fraction form
    939,316.55/1,408,971.18 = 340,137.56/x
  3. Step 3: Cross multiply
    939,316.55x = 1,408,971.18 × 340,137.56
  4. Step 4: Simplify right side
    939,316.55x = 479,244,022,797.95
  5. Step 5: Solve for x
    x = 479,244,022,797.95/939,316.55
  6. Step 6: Final answer
    x = 510,205.02

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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.