Home / 1,429,930.50-2,145,191.13-419,085.60

Finding the Fourth Proportional to 1,429,930.50, 2,145,191.13 and 419,085.60

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Solution

The fourth proportional to 1,429,930.50, 2,145,191.13 and 419,085.60 is: 628,714.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,930.50 : 2,145,191.13 = 419,085.60 : x
  2. Step 2: Convert to fraction form
    1,429,930.50/2,145,191.13 = 419,085.60/x
  3. Step 3: Cross multiply
    1,429,930.50x = 2,145,191.13 × 419,085.60
  4. Step 4: Simplify right side
    1,429,930.50x = 899,018,711,830.73
  5. Step 5: Solve for x
    x = 899,018,711,830.73/1,429,930.50
  6. Step 6: Final answer
    x = 628,714.97

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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.