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Finding the Fourth Proportional to 659,360.25, 909,917.15 and 357,554.49

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Solution

The fourth proportional to 659,360.25, 909,917.15 and 357,554.49 is: 493,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,360.25 : 909,917.15 = 357,554.49 : x
  2. Step 2: Convert to fraction form
    659,360.25/909,917.15 = 357,554.49/x
  3. Step 3: Cross multiply
    659,360.25x = 909,917.15 × 357,554.49
  4. Step 4: Simplify right side
    659,360.25x = 325,344,960,722.73
  5. Step 5: Solve for x
    x = 325,344,960,722.73/659,360.25
  6. Step 6: Final answer
    x = 493,425.20

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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.