Home / 739,119.12-1,019,617.70-477,384.43

Finding the Fourth Proportional to 739,119.12, 1,019,617.70 and 477,384.43

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Solution

The fourth proportional to 739,119.12, 1,019,617.70 and 477,384.43 is: 658,553.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,119.12 : 1,019,617.70 = 477,384.43 : x
  2. Step 2: Convert to fraction form
    739,119.12/1,019,617.70 = 477,384.43/x
  3. Step 3: Cross multiply
    739,119.12x = 1,019,617.70 × 477,384.43
  4. Step 4: Simplify right side
    739,119.12x = 486,749,609,434.32
  5. Step 5: Solve for x
    x = 486,749,609,434.32/739,119.12
  6. Step 6: Final answer
    x = 658,553.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.