Home / 664,530.60-997,026.30-290,821.80

Finding the Fourth Proportional to 664,530.60, 997,026.30 and 290,821.80

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Solution

The fourth proportional to 664,530.60, 997,026.30 and 290,821.80 is: 436,333.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,530.60 : 997,026.30 = 290,821.80 : x
  2. Step 2: Convert to fraction form
    664,530.60/997,026.30 = 290,821.80/x
  3. Step 3: Cross multiply
    664,530.60x = 997,026.30 × 290,821.80
  4. Step 4: Simplify right side
    664,530.60x = 289,956,983,213.34
  5. Step 5: Solve for x
    x = 289,956,983,213.34/664,530.60
  6. Step 6: Final answer
    x = 436,333.53

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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.