Home / 1,143,642.40-1,715,025.60-385,280.08

Finding the Fourth Proportional to 1,143,642.40, 1,715,025.60 and 385,280.08

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Solution

The fourth proportional to 1,143,642.40, 1,715,025.60 and 385,280.08 is: 577,772.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,642.40 : 1,715,025.60 = 385,280.08 : x
  2. Step 2: Convert to fraction form
    1,143,642.40/1,715,025.60 = 385,280.08/x
  3. Step 3: Cross multiply
    1,143,642.40x = 1,715,025.60 × 385,280.08
  4. Step 4: Simplify right side
    1,143,642.40x = 660,765,200,370.05
  5. Step 5: Solve for x
    x = 660,765,200,370.05/1,143,642.40
  6. Step 6: Final answer
    x = 577,772.56

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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.