Home / 1,118,616.03-1,678,598.64-398,903.04

Finding the Fourth Proportional to 1,118,616.03, 1,678,598.64 and 398,903.04

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Solution

The fourth proportional to 1,118,616.03, 1,678,598.64 and 398,903.04 is: 598,595.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,616.03 : 1,678,598.64 = 398,903.04 : x
  2. Step 2: Convert to fraction form
    1,118,616.03/1,678,598.64 = 398,903.04/x
  3. Step 3: Cross multiply
    1,118,616.03x = 1,678,598.64 × 398,903.04
  4. Step 4: Simplify right side
    1,118,616.03x = 669,598,100,435.87
  5. Step 5: Solve for x
    x = 669,598,100,435.87/1,118,616.03
  6. Step 6: Final answer
    x = 598,595.12

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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.