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Finding the Fourth Proportional to 504,655.36, 696,478.41 and 308,536.91

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Solution

The fourth proportional to 504,655.36, 696,478.41 and 308,536.91 is: 425,813.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,655.36 : 696,478.41 = 308,536.91 : x
  2. Step 2: Convert to fraction form
    504,655.36/696,478.41 = 308,536.91/x
  3. Step 3: Cross multiply
    504,655.36x = 696,478.41 × 308,536.91
  4. Step 4: Simplify right side
    504,655.36x = 214,889,294,960.43
  5. Step 5: Solve for x
    x = 214,889,294,960.43/504,655.36
  6. Step 6: Final answer
    x = 425,813.96

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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.