Home / 1,090,814.40-1,636,221.60-670,327.20

Finding the Fourth Proportional to 1,090,814.40, 1,636,221.60 and 670,327.20

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Solution

The fourth proportional to 1,090,814.40, 1,636,221.60 and 670,327.20 is: 1,005,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,814.40 : 1,636,221.60 = 670,327.20 : x
  2. Step 2: Convert to fraction form
    1,090,814.40/1,636,221.60 = 670,327.20/x
  3. Step 3: Cross multiply
    1,090,814.40x = 1,636,221.60 × 670,327.20
  4. Step 4: Simplify right side
    1,090,814.40x = 1,096,803,843,707.52
  5. Step 5: Solve for x
    x = 1,096,803,843,707.52/1,090,814.40
  6. Step 6: Final answer
    x = 1,005,490.80

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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.