Home / 421,458.56-581,824.32-325,748.96

Finding the Fourth Proportional to 421,458.56, 581,824.32 and 325,748.96

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Solution

The fourth proportional to 421,458.56, 581,824.32 and 325,748.96 is: 449,697.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,458.56 : 581,824.32 = 325,748.96 : x
  2. Step 2: Convert to fraction form
    421,458.56/581,824.32 = 325,748.96/x
  3. Step 3: Cross multiply
    421,458.56x = 581,824.32 × 325,748.96
  4. Step 4: Simplify right side
    421,458.56x = 189,528,667,142.71
  5. Step 5: Solve for x
    x = 189,528,667,142.71/421,458.56
  6. Step 6: Final answer
    x = 449,697.04

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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.