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Finding the Fourth Proportional to 447,808.16, 618,098.64 and 304,807.52

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Solution

The fourth proportional to 447,808.16, 618,098.64 and 304,807.52 is: 420,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,808.16 : 618,098.64 = 304,807.52 : x
  2. Step 2: Convert to fraction form
    447,808.16/618,098.64 = 304,807.52/x
  3. Step 3: Cross multiply
    447,808.16x = 618,098.64 × 304,807.52
  4. Step 4: Simplify right side
    447,808.16x = 188,401,113,573.77
  5. Step 5: Solve for x
    x = 188,401,113,573.77/447,808.16
  6. Step 6: Final answer
    x = 420,718.36

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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.