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Finding the Fourth Proportional to 480,013.21, 718,457.32 and 353,603.80

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Solution

The fourth proportional to 480,013.21, 718,457.32 and 353,603.80 is: 529,254.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,013.21 : 718,457.32 = 353,603.80 : x
  2. Step 2: Convert to fraction form
    480,013.21/718,457.32 = 353,603.80/x
  3. Step 3: Cross multiply
    480,013.21x = 718,457.32 × 353,603.80
  4. Step 4: Simplify right side
    480,013.21x = 254,049,238,489.82
  5. Step 5: Solve for x
    x = 254,049,238,489.82/480,013.21
  6. Step 6: Final answer
    x = 529,254.68

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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.