Home / 682,705.70-1,024,836.15-402,380.90

Finding the Fourth Proportional to 682,705.70, 1,024,836.15 and 402,380.90

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Solution

The fourth proportional to 682,705.70, 1,024,836.15 and 402,380.90 is: 604,029.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,705.70 : 1,024,836.15 = 402,380.90 : x
  2. Step 2: Convert to fraction form
    682,705.70/1,024,836.15 = 402,380.90/x
  3. Step 3: Cross multiply
    682,705.70x = 1,024,836.15 × 402,380.90
  4. Step 4: Simplify right side
    682,705.70x = 412,374,492,389.54
  5. Step 5: Solve for x
    x = 412,374,492,389.54/682,705.70
  6. Step 6: Final answer
    x = 604,029.66

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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.