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Finding the Fourth Proportional to 324,817.80, 487,226.70 and 306,795.40

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Solution

The fourth proportional to 324,817.80, 487,226.70 and 306,795.40 is: 460,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,817.80 : 487,226.70 = 306,795.40 : x
  2. Step 2: Convert to fraction form
    324,817.80/487,226.70 = 306,795.40/x
  3. Step 3: Cross multiply
    324,817.80x = 487,226.70 × 306,795.40
  4. Step 4: Simplify right side
    324,817.80x = 149,478,910,317.18
  5. Step 5: Solve for x
    x = 149,478,910,317.18/324,817.80
  6. Step 6: Final answer
    x = 460,193.10

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1.5x scale

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.