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Finding the Fourth Proportional to 548,344.96, 756,906.54 and 376,830.76

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Solution

The fourth proportional to 548,344.96, 756,906.54 and 376,830.76 is: 520,157.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,344.96 : 756,906.54 = 376,830.76 : x
  2. Step 2: Convert to fraction form
    548,344.96/756,906.54 = 376,830.76/x
  3. Step 3: Cross multiply
    548,344.96x = 756,906.54 × 376,830.76
  4. Step 4: Simplify right side
    548,344.96x = 285,225,666,717.17
  5. Step 5: Solve for x
    x = 285,225,666,717.17/548,344.96
  6. Step 6: Final answer
    x = 520,157.36

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1.5x scale

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.