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Finding the Fourth Proportional to 658,862.48, 909,231 and 357,056.48

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Solution

The fourth proportional to 658,862.48, 909,231 and 357,056.48 is: 492,738.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,862.48 : 909,231 = 357,056.48 : x
  2. Step 2: Convert to fraction form
    658,862.48/909,231 = 357,056.48/x
  3. Step 3: Cross multiply
    658,862.48x = 909,231 × 357,056.48
  4. Step 4: Simplify right side
    658,862.48x = 324,646,820,366.88
  5. Step 5: Solve for x
    x = 324,646,820,366.88/658,862.48
  6. Step 6: Final answer
    x = 492,738.36

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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.