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Finding the Fourth Proportional to 480,012.21, 718,455.83 and 353,602.80

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Solution

The fourth proportional to 480,012.21, 718,455.83 and 353,602.80 is: 529,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,012.21 : 718,455.83 = 353,602.80 : x
  2. Step 2: Convert to fraction form
    480,012.21/718,455.83 = 353,602.80/x
  3. Step 3: Cross multiply
    480,012.21x = 718,455.83 × 353,602.80
  4. Step 4: Simplify right side
    480,012.21x = 254,047,991,396.31
  5. Step 5: Solve for x
    x = 254,047,991,396.31/480,012.21
  6. Step 6: Final answer
    x = 529,253.19

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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.