Home / 457,940.80-631,974.72-266,923.36

Finding the Fourth Proportional to 457,940.80, 631,974.72 and 266,923.36

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Solution

The fourth proportional to 457,940.80, 631,974.72 and 266,923.36 is: 368,363.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,940.80 : 631,974.72 = 266,923.36 : x
  2. Step 2: Convert to fraction form
    457,940.80/631,974.72 = 266,923.36/x
  3. Step 3: Cross multiply
    457,940.80x = 631,974.72 × 266,923.36
  4. Step 4: Simplify right side
    457,940.80x = 168,688,815,697.46
  5. Step 5: Solve for x
    x = 168,688,815,697.46/457,940.80
  6. Step 6: Final answer
    x = 368,363.81

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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.