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Finding the Fourth Proportional to 606,321.40, 909,485.10 and 157,010.76

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Solution

The fourth proportional to 606,321.40, 909,485.10 and 157,010.76 is: 235,516.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,321.40 : 909,485.10 = 157,010.76 : x
  2. Step 2: Convert to fraction form
    606,321.40/909,485.10 = 157,010.76/x
  3. Step 3: Cross multiply
    606,321.40x = 909,485.10 × 157,010.76
  4. Step 4: Simplify right side
    606,321.40x = 142,798,946,759.68
  5. Step 5: Solve for x
    x = 142,798,946,759.68/606,321.40
  6. Step 6: Final answer
    x = 235,516.92

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1.5x scale

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.