Home / 1,019,099.20-1,528,454.40-309,150.40

Finding the Fourth Proportional to 1,019,099.20, 1,528,454.40 and 309,150.40

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Solution

The fourth proportional to 1,019,099.20, 1,528,454.40 and 309,150.40 is: 463,666.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,099.20 : 1,528,454.40 = 309,150.40 : x
  2. Step 2: Convert to fraction form
    1,019,099.20/1,528,454.40 = 309,150.40/x
  3. Step 3: Cross multiply
    1,019,099.20x = 1,528,454.40 × 309,150.40
  4. Step 4: Simplify right side
    1,019,099.20x = 472,522,289,141.76
  5. Step 5: Solve for x
    x = 472,522,289,141.76/1,019,099.20
  6. Step 6: Final answer
    x = 463,666.63

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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.