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Finding the Fourth Proportional to 295,780.60, 443,670.90 and 283,970.80

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Solution

The fourth proportional to 295,780.60, 443,670.90 and 283,970.80 is: 425,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,780.60 : 443,670.90 = 283,970.80 : x
  2. Step 2: Convert to fraction form
    295,780.60/443,670.90 = 283,970.80/x
  3. Step 3: Cross multiply
    295,780.60x = 443,670.90 × 283,970.80
  4. Step 4: Simplify right side
    295,780.60x = 125,989,580,409.72
  5. Step 5: Solve for x
    x = 125,989,580,409.72/295,780.60
  6. Step 6: Final answer
    x = 425,956.20

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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.