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Finding the Fourth Proportional to 503,290.83, 694,560.51 and 288,472.35

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Solution

The fourth proportional to 503,290.83, 694,560.51 and 288,472.35 is: 398,102.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,290.83 : 694,560.51 = 288,472.35 : x
  2. Step 2: Convert to fraction form
    503,290.83/694,560.51 = 288,472.35/x
  3. Step 3: Cross multiply
    503,290.83x = 694,560.51 × 288,472.35
  4. Step 4: Simplify right side
    503,290.83x = 200,361,502,536.90
  5. Step 5: Solve for x
    x = 200,361,502,536.90/503,290.83
  6. Step 6: Final answer
    x = 398,102.83

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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.