Home / 1,019,235.20-1,528,998.60-309,318.80

Finding the Fourth Proportional to 1,019,235.20, 1,528,998.60 and 309,318.80

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Solution

The fourth proportional to 1,019,235.20, 1,528,998.60 and 309,318.80 is: 464,022.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,235.20 : 1,528,998.60 = 309,318.80 : x
  2. Step 2: Convert to fraction form
    1,019,235.20/1,528,998.60 = 309,318.80/x
  3. Step 3: Cross multiply
    1,019,235.20x = 1,528,998.60 × 309,318.80
  4. Step 4: Simplify right side
    1,019,235.20x = 472,948,012,153.68
  5. Step 5: Solve for x
    x = 472,948,012,153.68/1,019,235.20
  6. Step 6: Final answer
    x = 464,022.45

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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.