Home / 778,269.17-1,073,965.21-451,556.89

Finding the Fourth Proportional to 778,269.17, 1,073,965.21 and 451,556.89

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Solution

The fourth proportional to 778,269.17, 1,073,965.21 and 451,556.89 is: 623,121.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,269.17 : 1,073,965.21 = 451,556.89 : x
  2. Step 2: Convert to fraction form
    778,269.17/1,073,965.21 = 451,556.89/x
  3. Step 3: Cross multiply
    778,269.17x = 1,073,965.21 × 451,556.89
  4. Step 4: Simplify right side
    778,269.17x = 484,956,386,381.99
  5. Step 5: Solve for x
    x = 484,956,386,381.99/778,269.17
  6. Step 6: Final answer
    x = 623,121.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.