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Finding the Fourth Proportional to 658,708.94, 909,018.94 and 356,902.94

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Solution

The fourth proportional to 658,708.94, 909,018.94 and 356,902.94 is: 492,526.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,708.94 : 909,018.94 = 356,902.94 : x
  2. Step 2: Convert to fraction form
    658,708.94/909,018.94 = 356,902.94/x
  3. Step 3: Cross multiply
    658,708.94x = 909,018.94 × 356,902.94
  4. Step 4: Simplify right side
    658,708.94x = 324,431,532,201.68
  5. Step 5: Solve for x
    x = 324,431,532,201.68/658,708.94
  6. Step 6: Final answer
    x = 492,526.38

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1.5x scale

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.