Home / 685,940.13-946,598.13-384,134.13

Finding the Fourth Proportional to 685,940.13, 946,598.13 and 384,134.13

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Solution

The fourth proportional to 685,940.13, 946,598.13 and 384,134.13 is: 530,105.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,940.13 : 946,598.13 = 384,134.13 : x
  2. Step 2: Convert to fraction form
    685,940.13/946,598.13 = 384,134.13/x
  3. Step 3: Cross multiply
    685,940.13x = 946,598.13 × 384,134.13
  4. Step 4: Simplify right side
    685,940.13x = 363,620,649,127.18
  5. Step 5: Solve for x
    x = 363,620,649,127.18/685,940.13
  6. Step 6: Final answer
    x = 530,105.52

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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.