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Finding the Fourth Proportional to 480,369.08, 720,922.98 and 455,701.88

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Solution

The fourth proportional to 480,369.08, 720,922.98 and 455,701.88 is: 683,903.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,369.08 : 720,922.98 = 455,701.88 : x
  2. Step 2: Convert to fraction form
    480,369.08/720,922.98 = 455,701.88/x
  3. Step 3: Cross multiply
    480,369.08x = 720,922.98 × 455,701.88
  4. Step 4: Simplify right side
    480,369.08x = 328,525,957,321.20
  5. Step 5: Solve for x
    x = 328,525,957,321.20/480,369.08
  6. Step 6: Final answer
    x = 683,903.21

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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.