Home / 449,815.18-674,623.15-129,897.40

Finding the Fourth Proportional to 449,815.18, 674,623.15 and 129,897.40

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Solution

The fourth proportional to 449,815.18, 674,623.15 and 129,897.40 is: 194,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,815.18 : 674,623.15 = 129,897.40 : x
  2. Step 2: Convert to fraction form
    449,815.18/674,623.15 = 129,897.40/x
  3. Step 3: Cross multiply
    449,815.18x = 674,623.15 × 129,897.40
  4. Step 4: Simplify right side
    449,815.18x = 87,631,793,164.81
  5. Step 5: Solve for x
    x = 87,631,793,164.81/449,815.18
  6. Step 6: Final answer
    x = 194,817.33

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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.