Home / 705,059.96-1,056,539.82-389,607.08

Finding the Fourth Proportional to 705,059.96, 1,056,539.82 and 389,607.08

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Solution

The fourth proportional to 705,059.96, 1,056,539.82 and 389,607.08 is: 583,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,059.96 : 1,056,539.82 = 389,607.08 : x
  2. Step 2: Convert to fraction form
    705,059.96/1,056,539.82 = 389,607.08/x
  3. Step 3: Cross multiply
    705,059.96x = 1,056,539.82 × 389,607.08
  4. Step 4: Simplify right side
    705,059.96x = 411,635,394,173.93
  5. Step 5: Solve for x
    x = 411,635,394,173.93/705,059.96
  6. Step 6: Final answer
    x = 583,830.34

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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.