Home / 776,859.68-1,072,120.25-470,948.96

Finding the Fourth Proportional to 776,859.68, 1,072,120.25 and 470,948.96

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Solution

The fourth proportional to 776,859.68, 1,072,120.25 and 470,948.96 is: 649,942.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,859.68 : 1,072,120.25 = 470,948.96 : x
  2. Step 2: Convert to fraction form
    776,859.68/1,072,120.25 = 470,948.96/x
  3. Step 3: Cross multiply
    776,859.68x = 1,072,120.25 × 470,948.96
  4. Step 4: Simplify right side
    776,859.68x = 504,913,916,732.44
  5. Step 5: Solve for x
    x = 504,913,916,732.44/776,859.68
  6. Step 6: Final answer
    x = 649,942.24

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1.5x scale

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.