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Finding the Fourth Proportional to 502,383.35, 693,117.55 and 311,327.03

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Solution

The fourth proportional to 502,383.35, 693,117.55 and 311,327.03 is: 429,525.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,383.35 : 693,117.55 = 311,327.03 : x
  2. Step 2: Convert to fraction form
    502,383.35/693,117.55 = 311,327.03/x
  3. Step 3: Cross multiply
    502,383.35x = 693,117.55 × 311,327.03
  4. Step 4: Simplify right side
    502,383.35x = 215,786,226,725.74
  5. Step 5: Solve for x
    x = 215,786,226,725.74/502,383.35
  6. Step 6: Final answer
    x = 429,525.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.