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Finding the Fourth Proportional to 660,674.68, 911,743.02 and 374,254.24

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Solution

The fourth proportional to 660,674.68, 911,743.02 and 374,254.24 is: 516,477.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,674.68 : 911,743.02 = 374,254.24 : x
  2. Step 2: Convert to fraction form
    660,674.68/911,743.02 = 374,254.24/x
  3. Step 3: Cross multiply
    660,674.68x = 911,743.02 × 374,254.24
  4. Step 4: Simplify right side
    660,674.68x = 341,223,691,025.41
  5. Step 5: Solve for x
    x = 341,223,691,025.41/660,674.68
  6. Step 6: Final answer
    x = 516,477.63

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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.