Home / 521,769.10-783,604.05-456,450.70

Finding the Fourth Proportional to 521,769.10, 783,604.05 and 456,450.70

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Solution

The fourth proportional to 521,769.10, 783,604.05 and 456,450.70 is: 685,507.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,769.10 : 783,604.05 = 456,450.70 : x
  2. Step 2: Convert to fraction form
    521,769.10/783,604.05 = 456,450.70/x
  3. Step 3: Cross multiply
    521,769.10x = 783,604.05 × 456,450.70
  4. Step 4: Simplify right side
    521,769.10x = 357,676,617,145.34
  5. Step 5: Solve for x
    x = 357,676,617,145.34/521,769.10
  6. Step 6: Final answer
    x = 685,507.47

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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.