Home / 1,209,959.35-1,669,692.75-658,663.58

Finding the Fourth Proportional to 1,209,959.35, 1,669,692.75 and 658,663.58

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Solution

The fourth proportional to 1,209,959.35, 1,669,692.75 and 658,663.58 is: 908,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,959.35 : 1,669,692.75 = 658,663.58 : x
  2. Step 2: Convert to fraction form
    1,209,959.35/1,669,692.75 = 658,663.58/x
  3. Step 3: Cross multiply
    1,209,959.35x = 1,669,692.75 × 658,663.58
  4. Step 4: Simplify right side
    1,209,959.35x = 1,099,765,804,432.75
  5. Step 5: Solve for x
    x = 1,099,765,804,432.75/1,209,959.35
  6. Step 6: Final answer
    x = 908,927.90

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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.