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Finding the Fourth Proportional to 480,499.77, 663,256.67 and 276,631.95

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Solution

The fourth proportional to 480,499.77, 663,256.67 and 276,631.95 is: 381,848.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,499.77 : 663,256.67 = 276,631.95 : x
  2. Step 2: Convert to fraction form
    480,499.77/663,256.67 = 276,631.95/x
  3. Step 3: Cross multiply
    480,499.77x = 663,256.67 × 276,631.95
  4. Step 4: Simplify right side
    480,499.77x = 183,477,984,589.45
  5. Step 5: Solve for x
    x = 183,477,984,589.45/480,499.77
  6. Step 6: Final answer
    x = 381,848.23

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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.