Home / 428,403.45-591,186.70-237,412.74

Finding the Fourth Proportional to 428,403.45, 591,186.70 and 237,412.74

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Solution

The fourth proportional to 428,403.45, 591,186.70 and 237,412.74 is: 327,624.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,403.45 : 591,186.70 = 237,412.74 : x
  2. Step 2: Convert to fraction form
    428,403.45/591,186.70 = 237,412.74/x
  3. Step 3: Cross multiply
    428,403.45x = 591,186.70 × 237,412.74
  4. Step 4: Simplify right side
    428,403.45x = 140,355,254,298.56
  5. Step 5: Solve for x
    x = 140,355,254,298.56/428,403.45
  6. Step 6: Final answer
    x = 327,624.01

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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.