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Finding the Fourth Proportional to 452,640.92, 679,108.80 and 215,952.96

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Solution

The fourth proportional to 452,640.92, 679,108.80 and 215,952.96 is: 323,999.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,640.92 : 679,108.80 = 215,952.96 : x
  2. Step 2: Convert to fraction form
    452,640.92/679,108.80 = 215,952.96/x
  3. Step 3: Cross multiply
    452,640.92x = 679,108.80 × 215,952.96
  4. Step 4: Simplify right side
    452,640.92x = 146,655,555,522.05
  5. Step 5: Solve for x
    x = 146,655,555,522.05/452,640.92
  6. Step 6: Final answer
    x = 323,999.77

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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.