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Finding the Fourth Proportional to 436,304.32, 653,788.40 and 293,620.64

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Solution

The fourth proportional to 436,304.32, 653,788.40 and 293,620.64 is: 439,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,304.32 : 653,788.40 = 293,620.64 : x
  2. Step 2: Convert to fraction form
    436,304.32/653,788.40 = 293,620.64/x
  3. Step 3: Cross multiply
    436,304.32x = 653,788.40 × 293,620.64
  4. Step 4: Simplify right side
    436,304.32x = 191,965,768,432.58
  5. Step 5: Solve for x
    x = 191,965,768,432.58/436,304.32
  6. Step 6: Final answer
    x = 439,981.36

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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.