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Finding the Fourth Proportional to 480,658.80, 720,210.60 and 302,847.60

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Solution

The fourth proportional to 480,658.80, 720,210.60 and 302,847.60 is: 453,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,658.80 : 720,210.60 = 302,847.60 : x
  2. Step 2: Convert to fraction form
    480,658.80/720,210.60 = 302,847.60/x
  3. Step 3: Cross multiply
    480,658.80x = 720,210.60 × 302,847.60
  4. Step 4: Simplify right side
    480,658.80x = 218,114,051,704.56
  5. Step 5: Solve for x
    x = 218,114,051,704.56/480,658.80
  6. Step 6: Final answer
    x = 453,781.46

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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.