Home / 428,267.45-591,008.99-256,192.67

Finding the Fourth Proportional to 428,267.45, 591,008.99 and 256,192.67

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Solution

The fourth proportional to 428,267.45, 591,008.99 and 256,192.67 is: 353,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,267.45 : 591,008.99 = 256,192.67 : x
  2. Step 2: Convert to fraction form
    428,267.45/591,008.99 = 256,192.67/x
  3. Step 3: Cross multiply
    428,267.45x = 591,008.99 × 256,192.67
  4. Step 4: Simplify right side
    428,267.45x = 151,412,168,187.06
  5. Step 5: Solve for x
    x = 151,412,168,187.06/428,267.45
  6. Step 6: Final answer
    x = 353,545.83

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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.