Home / 1,988,390.32-2,744,290.29-1,172,683.66

Finding the Fourth Proportional to 1,988,390.32, 2,744,290.29 and 1,172,683.66

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Solution

The fourth proportional to 1,988,390.32, 2,744,290.29 and 1,172,683.66 is: 1,618,487.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,390.32 : 2,744,290.29 = 1,172,683.66 : x
  2. Step 2: Convert to fraction form
    1,988,390.32/2,744,290.29 = 1,172,683.66/x
  3. Step 3: Cross multiply
    1,988,390.32x = 2,744,290.29 × 1,172,683.66
  4. Step 4: Simplify right side
    1,988,390.32x = 3,218,184,381,379.66
  5. Step 5: Solve for x
    x = 3,218,184,381,379.66/1,988,390.32
  6. Step 6: Final answer
    x = 1,618,487.25

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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.