Home / 685,748.66-946,326.93-383,947.70

Finding the Fourth Proportional to 685,748.66, 946,326.93 and 383,947.70

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Solution

The fourth proportional to 685,748.66, 946,326.93 and 383,947.70 is: 529,844.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,748.66 : 946,326.93 = 383,947.70 : x
  2. Step 2: Convert to fraction form
    685,748.66/946,326.93 = 383,947.70/x
  3. Step 3: Cross multiply
    685,748.66x = 946,326.93 × 383,947.70
  4. Step 4: Simplify right side
    685,748.66x = 363,340,048,221.56
  5. Step 5: Solve for x
    x = 363,340,048,221.56/685,748.66
  6. Step 6: Final answer
    x = 529,844.34

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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.