Home / 521,786.10-783,629.55-456,467.70

Finding the Fourth Proportional to 521,786.10, 783,629.55 and 456,467.70

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Solution

The fourth proportional to 521,786.10, 783,629.55 and 456,467.70 is: 685,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,786.10 : 783,629.55 = 456,467.70 : x
  2. Step 2: Convert to fraction form
    521,786.10/783,629.55 = 456,467.70/x
  3. Step 3: Cross multiply
    521,786.10x = 783,629.55 × 456,467.70
  4. Step 4: Simplify right side
    521,786.10x = 357,701,578,340.54
  5. Step 5: Solve for x
    x = 357,701,578,340.54/521,786.10
  6. Step 6: Final answer
    x = 685,532.98

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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.