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Finding the Fourth Proportional to 503,334.91, 694,632.08 and 288,488.86

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Solution

The fourth proportional to 503,334.91, 694,632.08 and 288,488.86 is: 398,131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,334.91 : 694,632.08 = 288,488.86 : x
  2. Step 2: Convert to fraction form
    503,334.91/694,632.08 = 288,488.86/x
  3. Step 3: Cross multiply
    503,334.91x = 694,632.08 × 288,488.86
  4. Step 4: Simplify right side
    503,334.91x = 200,393,616,878.63
  5. Step 5: Solve for x
    x = 200,393,616,878.63/503,334.91
  6. Step 6: Final answer
    x = 398,131.77

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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.