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Finding the Fourth Proportional to 581,383.76, 802,129.26 and 339,491.84

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Solution

The fourth proportional to 581,383.76, 802,129.26 and 339,491.84 is: 468,393.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,383.76 : 802,129.26 = 339,491.84 : x
  2. Step 2: Convert to fraction form
    581,383.76/802,129.26 = 339,491.84/x
  3. Step 3: Cross multiply
    581,383.76x = 802,129.26 × 339,491.84
  4. Step 4: Simplify right side
    581,383.76x = 272,316,335,657.69
  5. Step 5: Solve for x
    x = 272,316,335,657.69/581,383.76
  6. Step 6: Final answer
    x = 468,393.44

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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.