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Finding the Fourth Proportional to 558,015.64, 770,070.36 and 303,367.84

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Solution

The fourth proportional to 558,015.64, 770,070.36 and 303,367.84 is: 418,652.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,015.64 : 770,070.36 = 303,367.84 : x
  2. Step 2: Convert to fraction form
    558,015.64/770,070.36 = 303,367.84/x
  3. Step 3: Cross multiply
    558,015.64x = 770,070.36 × 303,367.84
  4. Step 4: Simplify right side
    558,015.64x = 233,614,581,761.22
  5. Step 5: Solve for x
    x = 233,614,581,761.22/558,015.64
  6. Step 6: Final answer
    x = 418,652.39

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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.