Home / 389,899.61-584,905.19-120,050.57

Finding the Fourth Proportional to 389,899.61, 584,905.19 and 120,050.57

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Solution

The fourth proportional to 389,899.61, 584,905.19 and 120,050.57 is: 180,093.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,899.61 : 584,905.19 = 120,050.57 : x
  2. Step 2: Convert to fraction form
    389,899.61/584,905.19 = 120,050.57/x
  3. Step 3: Cross multiply
    389,899.61x = 584,905.19 × 120,050.57
  4. Step 4: Simplify right side
    389,899.61x = 70,218,201,305.40
  5. Step 5: Solve for x
    x = 70,218,201,305.40/389,899.61
  6. Step 6: Final answer
    x = 180,093.03

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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.