Home / 1,091,309.80-1,636,187.10-417,130.60

Finding the Fourth Proportional to 1,091,309.80, 1,636,187.10 and 417,130.60

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Solution

The fourth proportional to 1,091,309.80, 1,636,187.10 and 417,130.60 is: 625,398.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,309.80 : 1,636,187.10 = 417,130.60 : x
  2. Step 2: Convert to fraction form
    1,091,309.80/1,636,187.10 = 417,130.60/x
  3. Step 3: Cross multiply
    1,091,309.80x = 1,636,187.10 × 417,130.60
  4. Step 4: Simplify right side
    1,091,309.80x = 682,503,706,735.26
  5. Step 5: Solve for x
    x = 682,503,706,735.26/1,091,309.80
  6. Step 6: Final answer
    x = 625,398.68

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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.