Home / 672,890.30-1,008,928.90-268,144.77

Finding the Fourth Proportional to 672,890.30, 1,008,928.90 and 268,144.77

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Solution

The fourth proportional to 672,890.30, 1,008,928.90 and 268,144.77 is: 402,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,890.30 : 1,008,928.90 = 268,144.77 : x
  2. Step 2: Convert to fraction form
    672,890.30/1,008,928.90 = 268,144.77/x
  3. Step 3: Cross multiply
    672,890.30x = 1,008,928.90 × 268,144.77
  4. Step 4: Simplify right side
    672,890.30x = 270,539,007,166.49
  5. Step 5: Solve for x
    x = 270,539,007,166.49/672,890.30
  6. Step 6: Final answer
    x = 402,055.15

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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.