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Finding the Fourth Proportional to 548,845.88, 757,298.57 and 307,081.53

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Solution

The fourth proportional to 548,845.88, 757,298.57 and 307,081.53 is: 423,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,845.88 : 757,298.57 = 307,081.53 : x
  2. Step 2: Convert to fraction form
    548,845.88/757,298.57 = 307,081.53/x
  3. Step 3: Cross multiply
    548,845.88x = 757,298.57 × 307,081.53
  4. Step 4: Simplify right side
    548,845.88x = 232,552,402,007.00
  5. Step 5: Solve for x
    x = 232,552,402,007.00/548,845.88
  6. Step 6: Final answer
    x = 423,711.67

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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.