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Finding the Fourth Proportional to 658,801.62, 909,146.70 and 356,995.62

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Solution

The fourth proportional to 658,801.62, 909,146.70 and 356,995.62 is: 492,654.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,801.62 : 909,146.70 = 356,995.62 : x
  2. Step 2: Convert to fraction form
    658,801.62/909,146.70 = 356,995.62/x
  3. Step 3: Cross multiply
    658,801.62x = 909,146.70 × 356,995.62
  4. Step 4: Simplify right side
    658,801.62x = 324,561,389,837.45
  5. Step 5: Solve for x
    x = 324,561,389,837.45/658,801.62
  6. Step 6: Final answer
    x = 492,654.21

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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.