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Finding the Fourth Proportional to 557,292.74, 769,063.86 and 315,575.24

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Solution

The fourth proportional to 557,292.74, 769,063.86 and 315,575.24 is: 435,493.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,292.74 : 769,063.86 = 315,575.24 : x
  2. Step 2: Convert to fraction form
    557,292.74/769,063.86 = 315,575.24/x
  3. Step 3: Cross multiply
    557,292.74x = 769,063.86 × 315,575.24
  4. Step 4: Simplify right side
    557,292.74x = 242,697,512,194.83
  5. Step 5: Solve for x
    x = 242,697,512,194.83/557,292.74
  6. Step 6: Final answer
    x = 435,493.76

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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.