Home / 683,136.20-1,025,481.90-402,811.40

Finding the Fourth Proportional to 683,136.20, 1,025,481.90 and 402,811.40

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Solution

The fourth proportional to 683,136.20, 1,025,481.90 and 402,811.40 is: 604,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,136.20 : 1,025,481.90 = 402,811.40 : x
  2. Step 2: Convert to fraction form
    683,136.20/1,025,481.90 = 402,811.40/x
  3. Step 3: Cross multiply
    683,136.20x = 1,025,481.90 × 402,811.40
  4. Step 4: Simplify right side
    683,136.20x = 413,075,799,813.66
  5. Step 5: Solve for x
    x = 413,075,799,813.66/683,136.20
  6. Step 6: Final answer
    x = 604,675.61

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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.