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Finding the Fourth Proportional to 438,056.60, 656,048.10 and 297,051.80

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Solution

The fourth proportional to 438,056.60, 656,048.10 and 297,051.80 is: 444,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,056.60 : 656,048.10 = 297,051.80 : x
  2. Step 2: Convert to fraction form
    438,056.60/656,048.10 = 297,051.80/x
  3. Step 3: Cross multiply
    438,056.60x = 656,048.10 × 297,051.80
  4. Step 4: Simplify right side
    438,056.60x = 194,880,268,991.58
  5. Step 5: Solve for x
    x = 194,880,268,991.58/438,056.60
  6. Step 6: Final answer
    x = 444,874.63

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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.