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Finding the Fourth Proportional to 659,503.72, 987,936.54 and 304,031.08

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Solution

The fourth proportional to 659,503.72, 987,936.54 and 304,031.08 is: 455,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,503.72 : 987,936.54 = 304,031.08 : x
  2. Step 2: Convert to fraction form
    659,503.72/987,936.54 = 304,031.08/x
  3. Step 3: Cross multiply
    659,503.72x = 987,936.54 × 304,031.08
  4. Step 4: Simplify right side
    659,503.72x = 300,363,413,227.66
  5. Step 5: Solve for x
    x = 300,363,413,227.66/659,503.72
  6. Step 6: Final answer
    x = 455,438.54

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1.5x scale

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.