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Finding the Fourth Proportional to 725,308, 1,001,529.32 and 605,079.50

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Solution

The fourth proportional to 725,308, 1,001,529.32 and 605,079.50 is: 835,513.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,308 : 1,001,529.32 = 605,079.50 : x
  2. Step 2: Convert to fraction form
    725,308/1,001,529.32 = 605,079.50/x
  3. Step 3: Cross multiply
    725,308x = 1,001,529.32 × 605,079.50
  4. Step 4: Simplify right side
    725,308x = 606,004,860,180.94
  5. Step 5: Solve for x
    x = 606,004,860,180.94/725,308
  6. Step 6: Final answer
    x = 835,513.82

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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.