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Finding the Fourth Proportional to 480,427.68, 663,055.98 and 276,474.36

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Solution

The fourth proportional to 480,427.68, 663,055.98 and 276,474.36 is: 381,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,427.68 : 663,055.98 = 276,474.36 : x
  2. Step 2: Convert to fraction form
    480,427.68/663,055.98 = 276,474.36/x
  3. Step 3: Cross multiply
    480,427.68x = 663,055.98 × 276,474.36
  4. Step 4: Simplify right side
    480,427.68x = 183,317,977,714.67
  5. Step 5: Solve for x
    x = 183,317,977,714.67/480,427.68
  6. Step 6: Final answer
    x = 381,572.47

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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.