Home / 1,188,005.40-1,779,383.70-626,383.80

Finding the Fourth Proportional to 1,188,005.40, 1,779,383.70 and 626,383.80

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Solution

The fourth proportional to 1,188,005.40, 1,779,383.70 and 626,383.80 is: 938,191.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,005.40 : 1,779,383.70 = 626,383.80 : x
  2. Step 2: Convert to fraction form
    1,188,005.40/1,779,383.70 = 626,383.80/x
  3. Step 3: Cross multiply
    1,188,005.40x = 1,779,383.70 × 626,383.80
  4. Step 4: Simplify right side
    1,188,005.40x = 1,114,577,123,664.06
  5. Step 5: Solve for x
    x = 1,114,577,123,664.06/1,188,005.40
  6. Step 6: Final answer
    x = 938,191.97

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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.