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Finding the Fourth Proportional to 658,955.98, 909,360.03 and 357,149.98

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Solution

The fourth proportional to 658,955.98, 909,360.03 and 357,149.98 is: 492,867.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,955.98 : 909,360.03 = 357,149.98 : x
  2. Step 2: Convert to fraction form
    658,955.98/909,360.03 = 357,149.98/x
  3. Step 3: Cross multiply
    658,955.98x = 909,360.03 × 357,149.98
  4. Step 4: Simplify right side
    658,955.98x = 324,777,916,527.30
  5. Step 5: Solve for x
    x = 324,777,916,527.30/658,955.98
  6. Step 6: Final answer
    x = 492,867.39

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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.