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Finding the Fourth Proportional to 508,141.73, 699,475.61 and 439,199.79

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Solution

The fourth proportional to 508,141.73, 699,475.61 and 439,199.79 is: 604,574.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,141.73 : 699,475.61 = 439,199.79 : x
  2. Step 2: Convert to fraction form
    508,141.73/699,475.61 = 439,199.79/x
  3. Step 3: Cross multiply
    508,141.73x = 699,475.61 × 439,199.79
  4. Step 4: Simplify right side
    508,141.73x = 307,209,538,826.12
  5. Step 5: Solve for x
    x = 307,209,538,826.12/508,141.73
  6. Step 6: Final answer
    x = 604,574.52

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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.