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Finding the Fourth Proportional to 480,720.88, 663,367.83 and 262,886.21

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Solution

The fourth proportional to 480,720.88, 663,367.83 and 262,886.21 is: 362,768.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,720.88 : 663,367.83 = 262,886.21 : x
  2. Step 2: Convert to fraction form
    480,720.88/663,367.83 = 262,886.21/x
  3. Step 3: Cross multiply
    480,720.88x = 663,367.83 × 262,886.21
  4. Step 4: Simplify right side
    480,720.88x = 174,390,252,849.59
  5. Step 5: Solve for x
    x = 174,390,252,849.59/480,720.88
  6. Step 6: Final answer
    x = 362,768.21

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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.