Home / 1,408,014.40-2,112,021.60-509,454.40

Finding the Fourth Proportional to 1,408,014.40, 2,112,021.60 and 509,454.40

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Solution

The fourth proportional to 1,408,014.40, 2,112,021.60 and 509,454.40 is: 764,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,014.40 : 2,112,021.60 = 509,454.40 : x
  2. Step 2: Convert to fraction form
    1,408,014.40/2,112,021.60 = 509,454.40/x
  3. Step 3: Cross multiply
    1,408,014.40x = 2,112,021.60 × 509,454.40
  4. Step 4: Simplify right side
    1,408,014.40x = 1,075,978,697,015.04
  5. Step 5: Solve for x
    x = 1,075,978,697,015.04/1,408,014.40
  6. Step 6: Final answer
    x = 764,181.60

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Double scale
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Similar ratio
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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.