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Finding the Fourth Proportional to 504,726.62, 696,630.53 and 289,985.09

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Solution

The fourth proportional to 504,726.62, 696,630.53 and 289,985.09 is: 400,241.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,726.62 : 696,630.53 = 289,985.09 : x
  2. Step 2: Convert to fraction form
    504,726.62/696,630.53 = 289,985.09/x
  3. Step 3: Cross multiply
    504,726.62x = 696,630.53 × 289,985.09
  4. Step 4: Simplify right side
    504,726.62x = 202,012,468,680.37
  5. Step 5: Solve for x
    x = 202,012,468,680.37/504,726.62
  6. Step 6: Final answer
    x = 400,241.36

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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.