Home / 821,712.40-1,233,835.80-448,464.40

Finding the Fourth Proportional to 821,712.40, 1,233,835.80 and 448,464.40

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Solution

The fourth proportional to 821,712.40, 1,233,835.80 and 448,464.40 is: 673,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,712.40 : 1,233,835.80 = 448,464.40 : x
  2. Step 2: Convert to fraction form
    821,712.40/1,233,835.80 = 448,464.40/x
  3. Step 3: Cross multiply
    821,712.40x = 1,233,835.80 × 448,464.40
  4. Step 4: Simplify right side
    821,712.40x = 553,331,431,745.52
  5. Step 5: Solve for x
    x = 553,331,431,745.52/821,712.40
  6. Step 6: Final answer
    x = 673,388.20

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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.