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Finding the Fourth Proportional to 660,546.86, 911,610.88 and 374,117.90

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Solution

The fourth proportional to 660,546.86, 911,610.88 and 374,117.90 is: 516,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,546.86 : 911,610.88 = 374,117.90 : x
  2. Step 2: Convert to fraction form
    660,546.86/911,610.88 = 374,117.90/x
  3. Step 3: Cross multiply
    660,546.86x = 911,610.88 × 374,117.90
  4. Step 4: Simplify right side
    660,546.86x = 341,049,942,549.40
  5. Step 5: Solve for x
    x = 341,049,942,549.40/660,546.86
  6. Step 6: Final answer
    x = 516,314.54

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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.