Home / 642,072.13-885,858.64-370,102.89

Finding the Fourth Proportional to 642,072.13, 885,858.64 and 370,102.89

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Solution

The fourth proportional to 642,072.13, 885,858.64 and 370,102.89 is: 510,626.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,072.13 : 885,858.64 = 370,102.89 : x
  2. Step 2: Convert to fraction form
    642,072.13/885,858.64 = 370,102.89/x
  3. Step 3: Cross multiply
    642,072.13x = 885,858.64 × 370,102.89
  4. Step 4: Simplify right side
    642,072.13x = 327,858,842,795.47
  5. Step 5: Solve for x
    x = 327,858,842,795.47/642,072.13
  6. Step 6: Final answer
    x = 510,626.19

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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.