Home / 955,604.85-1,432,410.83-387,378.21

Finding the Fourth Proportional to 955,604.85, 1,432,410.83 and 387,378.21

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Solution

The fourth proportional to 955,604.85, 1,432,410.83 and 387,378.21 is: 580,663.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,604.85 : 1,432,410.83 = 387,378.21 : x
  2. Step 2: Convert to fraction form
    955,604.85/1,432,410.83 = 387,378.21/x
  3. Step 3: Cross multiply
    955,604.85x = 1,432,410.83 × 387,378.21
  4. Step 4: Simplify right side
    955,604.85x = 554,884,741,373.12
  5. Step 5: Solve for x
    x = 554,884,741,373.12/955,604.85
  6. Step 6: Final answer
    x = 580,663.38

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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.