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Finding the Fourth Proportional to 601,221.80, 901,405.56 and 301,486.16

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Solution

The fourth proportional to 601,221.80, 901,405.56 and 301,486.16 is: 452,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,221.80 : 901,405.56 = 301,486.16 : x
  2. Step 2: Convert to fraction form
    601,221.80/901,405.56 = 301,486.16/x
  3. Step 3: Cross multiply
    601,221.80x = 901,405.56 × 301,486.16
  4. Step 4: Simplify right side
    601,221.80x = 271,761,300,887.05
  5. Step 5: Solve for x
    x = 271,761,300,887.05/601,221.80
  6. Step 6: Final answer
    x = 452,015.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.