Home / 428,777.76-591,984.36-275,887.04

Finding the Fourth Proportional to 428,777.76, 591,984.36 and 275,887.04

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Solution

The fourth proportional to 428,777.76, 591,984.36 and 275,887.04 is: 380,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,777.76 : 591,984.36 = 275,887.04 : x
  2. Step 2: Convert to fraction form
    428,777.76/591,984.36 = 275,887.04/x
  3. Step 3: Cross multiply
    428,777.76x = 591,984.36 × 275,887.04
  4. Step 4: Simplify right side
    428,777.76x = 163,320,812,806.69
  5. Step 5: Solve for x
    x = 163,320,812,806.69/428,777.76
  6. Step 6: Final answer
    x = 380,898.52

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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.