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Finding the Fourth Proportional to 608,920.40, 912,383.40 and 324,308.90

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Solution

The fourth proportional to 608,920.40, 912,383.40 and 324,308.90 is: 485,932.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,920.40 : 912,383.40 = 324,308.90 : x
  2. Step 2: Convert to fraction form
    608,920.40/912,383.40 = 324,308.90/x
  3. Step 3: Cross multiply
    608,920.40x = 912,383.40 × 324,308.90
  4. Step 4: Simplify right side
    608,920.40x = 295,894,056,832.26
  5. Step 5: Solve for x
    x = 295,894,056,832.26/608,920.40
  6. Step 6: Final answer
    x = 485,932.24

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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.