Home / 548,815.08-757,127.58-387,808.14

Finding the Fourth Proportional to 548,815.08, 757,127.58 and 387,808.14

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Solution

The fourth proportional to 548,815.08, 757,127.58 and 387,808.14 is: 535,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,815.08 : 757,127.58 = 387,808.14 : x
  2. Step 2: Convert to fraction form
    548,815.08/757,127.58 = 387,808.14/x
  3. Step 3: Cross multiply
    548,815.08x = 757,127.58 × 387,808.14
  4. Step 4: Simplify right side
    548,815.08x = 293,620,238,542.50
  5. Step 5: Solve for x
    x = 293,620,238,542.50/548,815.08
  6. Step 6: Final answer
    x = 535,007.60

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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.