Home / 685,031.85-945,329.01-374,932.94

Finding the Fourth Proportional to 685,031.85, 945,329.01 and 374,932.94

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Solution

The fourth proportional to 685,031.85, 945,329.01 and 374,932.94 is: 517,399.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,031.85 : 945,329.01 = 374,932.94 : x
  2. Step 2: Convert to fraction form
    685,031.85/945,329.01 = 374,932.94/x
  3. Step 3: Cross multiply
    685,031.85x = 945,329.01 × 374,932.94
  4. Step 4: Simplify right side
    685,031.85x = 354,434,980,259.94
  5. Step 5: Solve for x
    x = 354,434,980,259.94/685,031.85
  6. Step 6: Final answer
    x = 517,399.27

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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.