Home / 428,412.06-591,199.56-237,423.78

Finding the Fourth Proportional to 428,412.06, 591,199.56 and 237,423.78

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Solution

The fourth proportional to 428,412.06, 591,199.56 and 237,423.78 is: 327,639.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,412.06 : 591,199.56 = 237,423.78 : x
  2. Step 2: Convert to fraction form
    428,412.06/591,199.56 = 237,423.78/x
  3. Step 3: Cross multiply
    428,412.06x = 591,199.56 × 237,423.78
  4. Step 4: Simplify right side
    428,412.06x = 140,364,834,269.54
  5. Step 5: Solve for x
    x = 140,364,834,269.54/428,412.06
  6. Step 6: Final answer
    x = 327,639.78

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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.