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Finding the Fourth Proportional to 604,477.60, 906,687.60 and 205,079.20

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Solution

The fourth proportional to 604,477.60, 906,687.60 and 205,079.20 is: 307,609.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,477.60 : 906,687.60 = 205,079.20 : x
  2. Step 2: Convert to fraction form
    604,477.60/906,687.60 = 205,079.20/x
  3. Step 3: Cross multiply
    604,477.60x = 906,687.60 × 205,079.20
  4. Step 4: Simplify right side
    604,477.60x = 185,942,767,657.92
  5. Step 5: Solve for x
    x = 185,942,767,657.92/604,477.60
  6. Step 6: Final answer
    x = 307,609.03

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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.