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Finding the Fourth Proportional to 660,577.67, 911,566.67 and 374,099.80

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Solution

The fourth proportional to 660,577.67, 911,566.67 and 374,099.80 is: 516,240.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,577.67 : 911,566.67 = 374,099.80 : x
  2. Step 2: Convert to fraction form
    660,577.67/911,566.67 = 374,099.80/x
  3. Step 3: Cross multiply
    660,577.67x = 911,566.67 × 374,099.80
  4. Step 4: Simplify right side
    660,577.67x = 341,016,908,933.67
  5. Step 5: Solve for x
    x = 341,016,908,933.67/660,577.67
  6. Step 6: Final answer
    x = 516,240.44

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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.