Home / 877,540.89-1,316,311.35-212,692.89

Finding the Fourth Proportional to 877,540.89, 1,316,311.35 and 212,692.89

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Solution

The fourth proportional to 877,540.89, 1,316,311.35 and 212,692.89 is: 319,039.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,540.89 : 1,316,311.35 = 212,692.89 : x
  2. Step 2: Convert to fraction form
    877,540.89/1,316,311.35 = 212,692.89/x
  3. Step 3: Cross multiply
    877,540.89x = 1,316,311.35 × 212,692.89
  4. Step 4: Simplify right side
    877,540.89x = 279,970,065,171.30
  5. Step 5: Solve for x
    x = 279,970,065,171.30/877,540.89
  6. Step 6: Final answer
    x = 319,039.34

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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.