Home / 680,918.70-1,021,378.05-470,966.70

Finding the Fourth Proportional to 680,918.70, 1,021,378.05 and 470,966.70

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Solution

The fourth proportional to 680,918.70, 1,021,378.05 and 470,966.70 is: 706,450.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,918.70 : 1,021,378.05 = 470,966.70 : x
  2. Step 2: Convert to fraction form
    680,918.70/1,021,378.05 = 470,966.70/x
  3. Step 3: Cross multiply
    680,918.70x = 1,021,378.05 × 470,966.70
  4. Step 4: Simplify right side
    680,918.70x = 481,035,049,660.94
  5. Step 5: Solve for x
    x = 481,035,049,660.94/680,918.70
  6. Step 6: Final answer
    x = 706,450.05

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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.