Home / 661,744.13-913,301.57-371,386.67

Finding the Fourth Proportional to 661,744.13, 913,301.57 and 371,386.67

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Solution

The fourth proportional to 661,744.13, 913,301.57 and 371,386.67 is: 512,566.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,744.13 : 913,301.57 = 371,386.67 : x
  2. Step 2: Convert to fraction form
    661,744.13/913,301.57 = 371,386.67/x
  3. Step 3: Cross multiply
    661,744.13x = 913,301.57 × 371,386.67
  4. Step 4: Simplify right side
    661,744.13x = 339,188,026,504.82
  5. Step 5: Solve for x
    x = 339,188,026,504.82/661,744.13
  6. Step 6: Final answer
    x = 512,566.73

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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.