Home / 685,448.14-945,930.12-375,377.98

Finding the Fourth Proportional to 685,448.14, 945,930.12 and 375,377.98

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Solution

The fourth proportional to 685,448.14, 945,930.12 and 375,377.98 is: 518,028.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,448.14 : 945,930.12 = 375,377.98 : x
  2. Step 2: Convert to fraction form
    685,448.14/945,930.12 = 375,377.98/x
  3. Step 3: Cross multiply
    685,448.14x = 945,930.12 × 375,377.98
  4. Step 4: Simplify right side
    685,448.14x = 355,081,337,666.76
  5. Step 5: Solve for x
    x = 355,081,337,666.76/685,448.14
  6. Step 6: Final answer
    x = 518,028.01

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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.