Home / 939,288.56-1,408,929.35-340,109.58

Finding the Fourth Proportional to 939,288.56, 1,408,929.35 and 340,109.58

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Solution

The fourth proportional to 939,288.56, 1,408,929.35 and 340,109.58 is: 510,163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,288.56 : 1,408,929.35 = 340,109.58 : x
  2. Step 2: Convert to fraction form
    939,288.56/1,408,929.35 = 340,109.58/x
  3. Step 3: Cross multiply
    939,288.56x = 1,408,929.35 × 340,109.58
  4. Step 4: Simplify right side
    939,288.56x = 479,190,367,777.63
  5. Step 5: Solve for x
    x = 479,190,367,777.63/939,288.56
  6. Step 6: Final answer
    x = 510,163.11

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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.