Home / 388,590.45-581,982.30-375,120.96

Finding the Fourth Proportional to 388,590.45, 581,982.30 and 375,120.96

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Solution

The fourth proportional to 388,590.45, 581,982.30 and 375,120.96 is: 561,809.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,590.45 : 581,982.30 = 375,120.96 : x
  2. Step 2: Convert to fraction form
    388,590.45/581,982.30 = 375,120.96/x
  3. Step 3: Cross multiply
    388,590.45x = 581,982.30 × 375,120.96
  4. Step 4: Simplify right side
    388,590.45x = 218,313,759,079.01
  5. Step 5: Solve for x
    x = 218,313,759,079.01/388,590.45
  6. Step 6: Final answer
    x = 561,809.38

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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.