Home / 678,334.40-1,017,501.60-205,092.80

Finding the Fourth Proportional to 678,334.40, 1,017,501.60 and 205,092.80

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Solution

The fourth proportional to 678,334.40, 1,017,501.60 and 205,092.80 is: 307,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,334.40 : 1,017,501.60 = 205,092.80 : x
  2. Step 2: Convert to fraction form
    678,334.40/1,017,501.60 = 205,092.80/x
  3. Step 3: Cross multiply
    678,334.40x = 1,017,501.60 × 205,092.80
  4. Step 4: Simplify right side
    678,334.40x = 208,682,252,148.48
  5. Step 5: Solve for x
    x = 208,682,252,148.48/678,334.40
  6. Step 6: Final answer
    x = 307,639.20

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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.