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Finding the Fourth Proportional to 428,482.22, 590,897.58 and 256,372.62

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Solution

The fourth proportional to 428,482.22, 590,897.58 and 256,372.62 is: 353,550.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,482.22 : 590,897.58 = 256,372.62 : x
  2. Step 2: Convert to fraction form
    428,482.22/590,897.58 = 256,372.62/x
  3. Step 3: Cross multiply
    428,482.22x = 590,897.58 × 256,372.62
  4. Step 4: Simplify right side
    428,482.22x = 151,489,960,736.26
  5. Step 5: Solve for x
    x = 151,489,960,736.26/428,482.22
  6. Step 6: Final answer
    x = 353,550.17

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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.