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Finding the Fourth Proportional to 606,320.40, 909,483.60 and 157,009.76

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Solution

The fourth proportional to 606,320.40, 909,483.60 and 157,009.76 is: 235,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,320.40 : 909,483.60 = 157,009.76 : x
  2. Step 2: Convert to fraction form
    606,320.40/909,483.60 = 157,009.76/x
  3. Step 3: Cross multiply
    606,320.40x = 909,483.60 × 157,009.76
  4. Step 4: Simplify right side
    606,320.40x = 142,797,801,759.94
  5. Step 5: Solve for x
    x = 142,797,801,759.94/606,320.40
  6. Step 6: Final answer
    x = 235,515.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.