Home / 668,948.08-1,003,383.04-489,215.56

Finding the Fourth Proportional to 668,948.08, 1,003,383.04 and 489,215.56

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Solution

The fourth proportional to 668,948.08, 1,003,383.04 and 489,215.56 is: 733,794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,948.08 : 1,003,383.04 = 489,215.56 : x
  2. Step 2: Convert to fraction form
    668,948.08/1,003,383.04 = 489,215.56/x
  3. Step 3: Cross multiply
    668,948.08x = 1,003,383.04 × 489,215.56
  4. Step 4: Simplify right side
    668,948.08x = 490,870,595,808.10
  5. Step 5: Solve for x
    x = 490,870,595,808.10/668,948.08
  6. Step 6: Final answer
    x = 733,794.76

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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.