Home / 821,669.40-1,233,771.30-448,421.40

Finding the Fourth Proportional to 821,669.40, 1,233,771.30 and 448,421.40

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Solution

The fourth proportional to 821,669.40, 1,233,771.30 and 448,421.40 is: 673,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,669.40 : 1,233,771.30 = 448,421.40 : x
  2. Step 2: Convert to fraction form
    821,669.40/1,233,771.30 = 448,421.40/x
  3. Step 3: Cross multiply
    821,669.40x = 1,233,771.30 × 448,421.40
  4. Step 4: Simplify right side
    821,669.40x = 553,249,453,625.82
  5. Step 5: Solve for x
    x = 553,249,453,625.82/821,669.40
  6. Step 6: Final answer
    x = 673,323.67

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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.