Home / 681,955.15-1,021,604.10-415,053.67

Finding the Fourth Proportional to 681,955.15, 1,021,604.10 and 415,053.67

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Solution

The fourth proportional to 681,955.15, 1,021,604.10 and 415,053.67 is: 621,771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,955.15 : 1,021,604.10 = 415,053.67 : x
  2. Step 2: Convert to fraction form
    681,955.15/1,021,604.10 = 415,053.67/x
  3. Step 3: Cross multiply
    681,955.15x = 1,021,604.10 × 415,053.67
  4. Step 4: Simplify right side
    681,955.15x = 424,020,530,992.05
  5. Step 5: Solve for x
    x = 424,020,530,992.05/681,955.15
  6. Step 6: Final answer
    x = 621,771.87

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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.