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Finding the Fourth Proportional to 503,485.70, 756,103.35 and 487,739.30

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Solution

The fourth proportional to 503,485.70, 756,103.35 and 487,739.30 is: 732,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,485.70 : 756,103.35 = 487,739.30 : x
  2. Step 2: Convert to fraction form
    503,485.70/756,103.35 = 487,739.30/x
  3. Step 3: Cross multiply
    503,485.70x = 756,103.35 × 487,739.30
  4. Step 4: Simplify right side
    503,485.70x = 368,781,318,656.66
  5. Step 5: Solve for x
    x = 368,781,318,656.66/503,485.70
  6. Step 6: Final answer
    x = 732,456.39

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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.