Home / 683,205.40-1,024,961.70-402,578.20

Finding the Fourth Proportional to 683,205.40, 1,024,961.70 and 402,578.20

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Solution

The fourth proportional to 683,205.40, 1,024,961.70 and 402,578.20 is: 603,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,205.40 : 1,024,961.70 = 402,578.20 : x
  2. Step 2: Convert to fraction form
    683,205.40/1,024,961.70 = 402,578.20/x
  3. Step 3: Cross multiply
    683,205.40x = 1,024,961.70 × 402,578.20
  4. Step 4: Simplify right side
    683,205.40x = 412,627,236,254.94
  5. Step 5: Solve for x
    x = 412,627,236,254.94/683,205.40
  6. Step 6: Final answer
    x = 603,957.81

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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.