Home / 428,972.62-591,962.48-235,376.08

Finding the Fourth Proportional to 428,972.62, 591,962.48 and 235,376.08

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Solution

The fourth proportional to 428,972.62, 591,962.48 and 235,376.08 is: 324,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,972.62 : 591,962.48 = 235,376.08 : x
  2. Step 2: Convert to fraction form
    428,972.62/591,962.48 = 235,376.08/x
  3. Step 3: Cross multiply
    428,972.62x = 591,962.48 × 235,376.08
  4. Step 4: Simplify right side
    428,972.62x = 139,333,808,049.48
  5. Step 5: Solve for x
    x = 139,333,808,049.48/428,972.62
  6. Step 6: Final answer
    x = 324,808.16

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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.