Home / 1,306,029.90-1,802,698.11-789,784.50

Finding the Fourth Proportional to 1,306,029.90, 1,802,698.11 and 789,784.50

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Solution

The fourth proportional to 1,306,029.90, 1,802,698.11 and 789,784.50 is: 1,090,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,029.90 : 1,802,698.11 = 789,784.50 : x
  2. Step 2: Convert to fraction form
    1,306,029.90/1,802,698.11 = 789,784.50/x
  3. Step 3: Cross multiply
    1,306,029.90x = 1,802,698.11 × 789,784.50
  4. Step 4: Simplify right side
    1,306,029.90x = 1,423,743,025,457.30
  5. Step 5: Solve for x
    x = 1,423,743,025,457.30/1,306,029.90
  6. Step 6: Final answer
    x = 1,090,130.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.