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Finding the Fourth Proportional to 508,141.34, 699,474.63 and 439,199.19

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Solution

The fourth proportional to 508,141.34, 699,474.63 and 439,199.19 is: 604,573.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,141.34 : 699,474.63 = 439,199.19 : x
  2. Step 2: Convert to fraction form
    508,141.34/699,474.63 = 439,199.19/x
  3. Step 3: Cross multiply
    508,141.34x = 699,474.63 × 439,199.19
  4. Step 4: Simplify right side
    508,141.34x = 307,208,690,921.55
  5. Step 5: Solve for x
    x = 307,208,690,921.55/508,141.34
  6. Step 6: Final answer
    x = 604,573.31

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Double scale
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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.