Home / 1,380,052.02-2,070,963.76-669,692.55

Finding the Fourth Proportional to 1,380,052.02, 2,070,963.76 and 669,692.55

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Solution

The fourth proportional to 1,380,052.02, 2,070,963.76 and 669,692.55 is: 1,004,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,052.02 : 2,070,963.76 = 669,692.55 : x
  2. Step 2: Convert to fraction form
    1,380,052.02/2,070,963.76 = 669,692.55/x
  3. Step 3: Cross multiply
    1,380,052.02x = 2,070,963.76 × 669,692.55
  4. Step 4: Simplify right side
    1,380,052.02x = 1,386,908,994,648.94
  5. Step 5: Solve for x
    x = 1,386,908,994,648.94/1,380,052.02
  6. Step 6: Final answer
    x = 1,004,968.64

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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.