Home / 1,306,030.90-1,802,699.49-789,785.50

Finding the Fourth Proportional to 1,306,030.90, 1,802,699.49 and 789,785.50

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Solution

The fourth proportional to 1,306,030.90, 1,802,699.49 and 789,785.50 is: 1,090,131.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,030.90 : 1,802,699.49 = 789,785.50 : x
  2. Step 2: Convert to fraction form
    1,306,030.90/1,802,699.49 = 789,785.50/x
  3. Step 3: Cross multiply
    1,306,030.90x = 1,802,699.49 × 789,785.50
  4. Step 4: Simplify right side
    1,306,030.90x = 1,423,745,918,059.40
  5. Step 5: Solve for x
    x = 1,423,745,918,059.40/1,306,030.90
  6. Step 6: Final answer
    x = 1,090,131.88

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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.