Home / 678,558.80-1,017,838.20-235,326.80

Finding the Fourth Proportional to 678,558.80, 1,017,838.20 and 235,326.80

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Solution

The fourth proportional to 678,558.80, 1,017,838.20 and 235,326.80 is: 352,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,558.80 : 1,017,838.20 = 235,326.80 : x
  2. Step 2: Convert to fraction form
    678,558.80/1,017,838.20 = 235,326.80/x
  3. Step 3: Cross multiply
    678,558.80x = 1,017,838.20 × 235,326.80
  4. Step 4: Simplify right side
    678,558.80x = 239,524,606,523.76
  5. Step 5: Solve for x
    x = 239,524,606,523.76/678,558.80
  6. Step 6: Final answer
    x = 352,990.20

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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.