Home / 683,637.30-1,025,455.95-210,321.90

Finding the Fourth Proportional to 683,637.30, 1,025,455.95 and 210,321.90

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Solution

The fourth proportional to 683,637.30, 1,025,455.95 and 210,321.90 is: 315,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,637.30 : 1,025,455.95 = 210,321.90 : x
  2. Step 2: Convert to fraction form
    683,637.30/1,025,455.95 = 210,321.90/x
  3. Step 3: Cross multiply
    683,637.30x = 1,025,455.95 × 210,321.90
  4. Step 4: Simplify right side
    683,637.30x = 215,675,843,770.31
  5. Step 5: Solve for x
    x = 215,675,843,770.31/683,637.30
  6. Step 6: Final answer
    x = 315,482.85

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Similar ratio
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1.5x scale

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.