Home / 558,387.96-837,858.72-221,421.40

Finding the Fourth Proportional to 558,387.96, 837,858.72 and 221,421.40

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Solution

The fourth proportional to 558,387.96, 837,858.72 and 221,421.40 is: 332,241.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,387.96 : 837,858.72 = 221,421.40 : x
  2. Step 2: Convert to fraction form
    558,387.96/837,858.72 = 221,421.40/x
  3. Step 3: Cross multiply
    558,387.96x = 837,858.72 × 221,421.40
  4. Step 4: Simplify right side
    558,387.96x = 185,519,850,784.61
  5. Step 5: Solve for x
    x = 185,519,850,784.61/558,387.96
  6. Step 6: Final answer
    x = 332,241.85

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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.