Home / 379,721.04-523,768.14-243,539.28

Finding the Fourth Proportional to 379,721.04, 523,768.14 and 243,539.28

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Solution

The fourth proportional to 379,721.04, 523,768.14 and 243,539.28 is: 335,925.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,721.04 : 523,768.14 = 243,539.28 : x
  2. Step 2: Convert to fraction form
    379,721.04/523,768.14 = 243,539.28/x
  3. Step 3: Cross multiply
    379,721.04x = 523,768.14 × 243,539.28
  4. Step 4: Simplify right side
    379,721.04x = 127,558,115,702.54
  5. Step 5: Solve for x
    x = 127,558,115,702.54/379,721.04
  6. Step 6: Final answer
    x = 335,925.86

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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.