Home / 1,297,112.76-1,945,674.90-398,547

Finding the Fourth Proportional to 1,297,112.76, 1,945,674.90 and 398,547

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Solution

The fourth proportional to 1,297,112.76, 1,945,674.90 and 398,547 is: 597,822.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,112.76 : 1,945,674.90 = 398,547 : x
  2. Step 2: Convert to fraction form
    1,297,112.76/1,945,674.90 = 398,547/x
  3. Step 3: Cross multiply
    1,297,112.76x = 1,945,674.90 × 398,547
  4. Step 4: Simplify right side
    1,297,112.76x = 775,442,894,370.30
  5. Step 5: Solve for x
    x = 775,442,894,370.30/1,297,112.76
  6. Step 6: Final answer
    x = 597,822.27

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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.