Home / 480,218.79-720,452.73-255,394.36

Finding the Fourth Proportional to 480,218.79, 720,452.73 and 255,394.36

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Solution

The fourth proportional to 480,218.79, 720,452.73 and 255,394.36 is: 383,157.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,218.79 : 720,452.73 = 255,394.36 : x
  2. Step 2: Convert to fraction form
    480,218.79/720,452.73 = 255,394.36/x
  3. Step 3: Cross multiply
    480,218.79x = 720,452.73 × 255,394.36
  4. Step 4: Simplify right side
    480,218.79x = 183,999,560,286.34
  5. Step 5: Solve for x
    x = 183,999,560,286.34/480,218.79
  6. Step 6: Final answer
    x = 383,157.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.