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Finding the Fourth Proportional to 354,741.60, 532,112.40 and 325,711.20

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Solution

The fourth proportional to 354,741.60, 532,112.40 and 325,711.20 is: 488,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,741.60 : 532,112.40 = 325,711.20 : x
  2. Step 2: Convert to fraction form
    354,741.60/532,112.40 = 325,711.20/x
  3. Step 3: Cross multiply
    354,741.60x = 532,112.40 × 325,711.20
  4. Step 4: Simplify right side
    354,741.60x = 173,314,968,338.88
  5. Step 5: Solve for x
    x = 173,314,968,338.88/354,741.60
  6. Step 6: Final answer
    x = 488,566.80

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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.