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Finding the Fourth Proportional to 548,535.70, 756,912.93 and 316,038.69

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Solution

The fourth proportional to 548,535.70, 756,912.93 and 316,038.69 is: 436,095.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,535.70 : 756,912.93 = 316,038.69 : x
  2. Step 2: Convert to fraction form
    548,535.70/756,912.93 = 316,038.69/x
  3. Step 3: Cross multiply
    548,535.70x = 756,912.93 × 316,038.69
  4. Step 4: Simplify right side
    548,535.70x = 239,213,768,416.16
  5. Step 5: Solve for x
    x = 239,213,768,416.16/548,535.70
  6. Step 6: Final answer
    x = 436,095.17

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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.