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Finding the Fourth Proportional to 403,507.54, 556,906.98 and 307,833.58

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Solution

The fourth proportional to 403,507.54, 556,906.98 and 307,833.58 is: 424,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,507.54 : 556,906.98 = 307,833.58 : x
  2. Step 2: Convert to fraction form
    403,507.54/556,906.98 = 307,833.58/x
  3. Step 3: Cross multiply
    403,507.54x = 556,906.98 × 307,833.58
  4. Step 4: Simplify right side
    403,507.54x = 171,434,669,380.39
  5. Step 5: Solve for x
    x = 171,434,669,380.39/403,507.54
  6. Step 6: Final answer
    x = 424,861.13

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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.