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Finding the Fourth Proportional to 806,018, 1,208,983.24 and 245,008.76

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Solution

The fourth proportional to 806,018, 1,208,983.24 and 245,008.76 is: 367,499.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,018 : 1,208,983.24 = 245,008.76 : x
  2. Step 2: Convert to fraction form
    806,018/1,208,983.24 = 245,008.76/x
  3. Step 3: Cross multiply
    806,018x = 1,208,983.24 × 245,008.76
  4. Step 4: Simplify right side
    806,018x = 296,211,484,493.18
  5. Step 5: Solve for x
    x = 296,211,484,493.18/806,018
  6. Step 6: Final answer
    x = 367,499.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.