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Finding the Fourth Proportional to 428,070.33, 590,714.21 and 234,468.02

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Solution

The fourth proportional to 428,070.33, 590,714.21 and 234,468.02 is: 323,553.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,070.33 : 590,714.21 = 234,468.02 : x
  2. Step 2: Convert to fraction form
    428,070.33/590,714.21 = 234,468.02/x
  3. Step 3: Cross multiply
    428,070.33x = 590,714.21 × 234,468.02
  4. Step 4: Simplify right side
    428,070.33x = 138,503,591,509.01
  5. Step 5: Solve for x
    x = 138,503,591,509.01/428,070.33
  6. Step 6: Final answer
    x = 323,553.36

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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.