Home / 548,981.57-757,421.87-307,225.73

Finding the Fourth Proportional to 548,981.57, 757,421.87 and 307,225.73

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Solution

The fourth proportional to 548,981.57, 757,421.87 and 307,225.73 is: 423,874.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,981.57 : 757,421.87 = 307,225.73 : x
  2. Step 2: Convert to fraction form
    548,981.57/757,421.87 = 307,225.73/x
  3. Step 3: Cross multiply
    548,981.57x = 757,421.87 × 307,225.73
  4. Step 4: Simplify right side
    548,981.57x = 232,699,481,605.48
  5. Step 5: Solve for x
    x = 232,699,481,605.48/548,981.57
  6. Step 6: Final answer
    x = 423,874.86

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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.