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Finding the Fourth Proportional to 505,014.40, 696,919.48 and 323,726.20

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Solution

The fourth proportional to 505,014.40, 696,919.48 and 323,726.20 is: 446,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,014.40 : 696,919.48 = 323,726.20 : x
  2. Step 2: Convert to fraction form
    505,014.40/696,919.48 = 323,726.20/x
  3. Step 3: Cross multiply
    505,014.40x = 696,919.48 × 323,726.20
  4. Step 4: Simplify right side
    505,014.40x = 225,611,094,966.38
  5. Step 5: Solve for x
    x = 225,611,094,966.38/505,014.40
  6. Step 6: Final answer
    x = 446,741.90

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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.