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Finding the Fourth Proportional to 504,508.60, 756,741 and 125,421.40

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Solution

The fourth proportional to 504,508.60, 756,741 and 125,421.40 is: 188,126.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,508.60 : 756,741 = 125,421.40 : x
  2. Step 2: Convert to fraction form
    504,508.60/756,741 = 125,421.40/x
  3. Step 3: Cross multiply
    504,508.60x = 756,741 × 125,421.40
  4. Step 4: Simplify right side
    504,508.60x = 94,911,515,657.40
  5. Step 5: Solve for x
    x = 94,911,515,657.40/504,508.60
  6. Step 6: Final answer
    x = 188,126.66

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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.