Home / 501,838.54-692,306.19-320,459.70

Finding the Fourth Proportional to 501,838.54, 692,306.19 and 320,459.70

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Solution

The fourth proportional to 501,838.54, 692,306.19 and 320,459.70 is: 442,086.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,838.54 : 692,306.19 = 320,459.70 : x
  2. Step 2: Convert to fraction form
    501,838.54/692,306.19 = 320,459.70/x
  3. Step 3: Cross multiply
    501,838.54x = 692,306.19 × 320,459.70
  4. Step 4: Simplify right side
    501,838.54x = 221,856,233,955.54
  5. Step 5: Solve for x
    x = 221,856,233,955.54/501,838.54
  6. Step 6: Final answer
    x = 442,086.88

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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.