Home / 421,725.72-581,995.34-230,734.76

Finding the Fourth Proportional to 421,725.72, 581,995.34 and 230,734.76

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Solution

The fourth proportional to 421,725.72, 581,995.34 and 230,734.76 is: 318,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,725.72 : 581,995.34 = 230,734.76 : x
  2. Step 2: Convert to fraction form
    421,725.72/581,995.34 = 230,734.76/x
  3. Step 3: Cross multiply
    421,725.72x = 581,995.34 × 230,734.76
  4. Step 4: Simplify right side
    421,725.72x = 134,286,555,096.02
  5. Step 5: Solve for x
    x = 134,286,555,096.02/421,725.72
  6. Step 6: Final answer
    x = 318,421.54

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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.