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Finding the Fourth Proportional to 446,543.70, 669,815.55 and 278,582.10

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Solution

The fourth proportional to 446,543.70, 669,815.55 and 278,582.10 is: 417,873.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,543.70 : 669,815.55 = 278,582.10 : x
  2. Step 2: Convert to fraction form
    446,543.70/669,815.55 = 278,582.10/x
  3. Step 3: Cross multiply
    446,543.70x = 669,815.55 × 278,582.10
  4. Step 4: Simplify right side
    446,543.70x = 186,598,622,531.66
  5. Step 5: Solve for x
    x = 186,598,622,531.66/446,543.70
  6. Step 6: Final answer
    x = 417,873.15

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Similar ratio
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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.