Home / 2,187,058.09-3,280,208.86-988,701.69

Finding the Fourth Proportional to 2,187,058.09, 3,280,208.86 and 988,701.69

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Solution

The fourth proportional to 2,187,058.09, 3,280,208.86 and 988,701.69 is: 1,482,881.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,058.09 : 3,280,208.86 = 988,701.69 : x
  2. Step 2: Convert to fraction form
    2,187,058.09/3,280,208.86 = 988,701.69/x
  3. Step 3: Cross multiply
    2,187,058.09x = 3,280,208.86 × 988,701.69
  4. Step 4: Simplify right side
    2,187,058.09x = 3,243,148,051,410.38
  5. Step 5: Solve for x
    x = 3,243,148,051,410.38/2,187,058.09
  6. Step 6: Final answer
    x = 1,482,881.53

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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.