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Finding the Fourth Proportional to 595,564.60, 821,915.58 and 340,909.72

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Solution

The fourth proportional to 595,564.60, 821,915.58 and 340,909.72 is: 470,476.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,564.60 : 821,915.58 = 340,909.72 : x
  2. Step 2: Convert to fraction form
    595,564.60/821,915.58 = 340,909.72/x
  3. Step 3: Cross multiply
    595,564.60x = 821,915.58 × 340,909.72
  4. Step 4: Simplify right side
    595,564.60x = 280,199,010,241.44
  5. Step 5: Solve for x
    x = 280,199,010,241.44/595,564.60
  6. Step 6: Final answer
    x = 470,476.27

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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.