Home / 428,330.24-591,095.54-256,255.49

Finding the Fourth Proportional to 428,330.24, 591,095.54 and 256,255.49

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Solution

The fourth proportional to 428,330.24, 591,095.54 and 256,255.49 is: 353,632.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,330.24 : 591,095.54 = 256,255.49 : x
  2. Step 2: Convert to fraction form
    428,330.24/591,095.54 = 256,255.49/x
  3. Step 3: Cross multiply
    428,330.24x = 591,095.54 × 256,255.49
  4. Step 4: Simplify right side
    428,330.24x = 151,471,473,002.76
  5. Step 5: Solve for x
    x = 151,471,473,002.76/428,330.24
  6. Step 6: Final answer
    x = 353,632.46

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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.