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Finding the Fourth Proportional to 604,109.60, 906,135.60 and 204,711.20

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Solution

The fourth proportional to 604,109.60, 906,135.60 and 204,711.20 is: 307,057.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,109.60 : 906,135.60 = 204,711.20 : x
  2. Step 2: Convert to fraction form
    604,109.60/906,135.60 = 204,711.20/x
  3. Step 3: Cross multiply
    604,109.60x = 906,135.60 × 204,711.20
  4. Step 4: Simplify right side
    604,109.60x = 185,496,106,038.72
  5. Step 5: Solve for x
    x = 185,496,106,038.72/604,109.60
  6. Step 6: Final answer
    x = 307,057.04

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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.