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Finding the Fourth Proportional to 548,985.34, 757,599.64 and 307,267.90

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Solution

The fourth proportional to 548,985.34, 757,599.64 and 307,267.90 is: 424,029.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,985.34 : 757,599.64 = 307,267.90 : x
  2. Step 2: Convert to fraction form
    548,985.34/757,599.64 = 307,267.90/x
  3. Step 3: Cross multiply
    548,985.34x = 757,599.64 × 307,267.90
  4. Step 4: Simplify right side
    548,985.34x = 232,786,050,423.56
  5. Step 5: Solve for x
    x = 232,786,050,423.56/548,985.34
  6. Step 6: Final answer
    x = 424,029.63

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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.