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Finding the Fourth Proportional to 503,511.46, 694,860.90 and 310,030.86

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Solution

The fourth proportional to 503,511.46, 694,860.90 and 310,030.86 is: 427,851.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,511.46 : 694,860.90 = 310,030.86 : x
  2. Step 2: Convert to fraction form
    503,511.46/694,860.90 = 310,030.86/x
  3. Step 3: Cross multiply
    503,511.46x = 694,860.90 × 310,030.86
  4. Step 4: Simplify right side
    503,511.46x = 215,428,322,407.37
  5. Step 5: Solve for x
    x = 215,428,322,407.37/503,511.46
  6. Step 6: Final answer
    x = 427,851.88

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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.