Home / 1,188,007.40-1,779,386.70-626,385.80

Finding the Fourth Proportional to 1,188,007.40, 1,779,386.70 and 626,385.80

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Solution

The fourth proportional to 1,188,007.40, 1,779,386.70 and 626,385.80 is: 938,194.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,007.40 : 1,779,386.70 = 626,385.80 : x
  2. Step 2: Convert to fraction form
    1,188,007.40/1,779,386.70 = 626,385.80/x
  3. Step 3: Cross multiply
    1,188,007.40x = 1,779,386.70 × 626,385.80
  4. Step 4: Simplify right side
    1,188,007.40x = 1,114,582,561,588.86
  5. Step 5: Solve for x
    x = 1,114,582,561,588.86/1,188,007.40
  6. Step 6: Final answer
    x = 938,194.97

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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.