Home / 1,916,781.40-2,870,079.11-1,157,595.80

Finding the Fourth Proportional to 1,916,781.40, 2,870,079.11 and 1,157,595.80

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Solution

The fourth proportional to 1,916,781.40, 2,870,079.11 and 1,157,595.80 is: 1,733,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,781.40 : 2,870,079.11 = 1,157,595.80 : x
  2. Step 2: Convert to fraction form
    1,916,781.40/2,870,079.11 = 1,157,595.80/x
  3. Step 3: Cross multiply
    1,916,781.40x = 2,870,079.11 × 1,157,595.80
  4. Step 4: Simplify right side
    1,916,781.40x = 3,322,391,507,606.35
  5. Step 5: Solve for x
    x = 3,322,391,507,606.35/1,916,781.40
  6. Step 6: Final answer
    x = 1,733,317.90

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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.