Home / 1,105,385.80-1,658,078.70-395,469.40

Finding the Fourth Proportional to 1,105,385.80, 1,658,078.70 and 395,469.40

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Solution

The fourth proportional to 1,105,385.80, 1,658,078.70 and 395,469.40 is: 593,204.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,385.80 : 1,658,078.70 = 395,469.40 : x
  2. Step 2: Convert to fraction form
    1,105,385.80/1,658,078.70 = 395,469.40/x
  3. Step 3: Cross multiply
    1,105,385.80x = 1,658,078.70 × 395,469.40
  4. Step 4: Simplify right side
    1,105,385.80x = 655,719,388,641.78
  5. Step 5: Solve for x
    x = 655,719,388,641.78/1,105,385.80
  6. Step 6: Final answer
    x = 593,204.10

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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.