Home / 1,753,607.80-2,420,010.78-989,513.80

Finding the Fourth Proportional to 1,753,607.80, 2,420,010.78 and 989,513.80

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Solution

The fourth proportional to 1,753,607.80, 2,420,010.78 and 989,513.80 is: 1,365,547.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753,607.80 : 2,420,010.78 = 989,513.80 : x
  2. Step 2: Convert to fraction form
    1,753,607.80/2,420,010.78 = 989,513.80/x
  3. Step 3: Cross multiply
    1,753,607.80x = 2,420,010.78 × 989,513.80
  4. Step 4: Simplify right side
    1,753,607.80x = 2,394,634,062,958.76
  5. Step 5: Solve for x
    x = 2,394,634,062,958.76/1,753,607.80
  6. Step 6: Final answer
    x = 1,365,547.11

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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.