Home / 428,749.30-591,684.88-242,465.86

Finding the Fourth Proportional to 428,749.30, 591,684.88 and 242,465.86

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Solution

The fourth proportional to 428,749.30, 591,684.88 and 242,465.86 is: 334,609.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,749.30 : 591,684.88 = 242,465.86 : x
  2. Step 2: Convert to fraction form
    428,749.30/591,684.88 = 242,465.86/x
  3. Step 3: Cross multiply
    428,749.30x = 591,684.88 × 242,465.86
  4. Step 4: Simplify right side
    428,749.30x = 143,463,379,856.10
  5. Step 5: Solve for x
    x = 143,463,379,856.10/428,749.30
  6. Step 6: Final answer
    x = 334,609.01

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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.