Home / 1,090,079.40-1,636,091.10-640,237.80

Finding the Fourth Proportional to 1,090,079.40, 1,636,091.10 and 640,237.80

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Solution

The fourth proportional to 1,090,079.40, 1,636,091.10 and 640,237.80 is: 960,927.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,079.40 : 1,636,091.10 = 640,237.80 : x
  2. Step 2: Convert to fraction form
    1,090,079.40/1,636,091.10 = 640,237.80/x
  3. Step 3: Cross multiply
    1,090,079.40x = 1,636,091.10 × 640,237.80
  4. Step 4: Simplify right side
    1,090,079.40x = 1,047,487,366,463.58
  5. Step 5: Solve for x
    x = 1,047,487,366,463.58/1,090,079.40
  6. Step 6: Final answer
    x = 960,927.59

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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.