Home / 1,857,705.40-2,786,558.10-1,101,878.20

Finding the Fourth Proportional to 1,857,705.40, 2,786,558.10 and 1,101,878.20

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Solution

The fourth proportional to 1,857,705.40, 2,786,558.10 and 1,101,878.20 is: 1,652,817.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,705.40 : 2,786,558.10 = 1,101,878.20 : x
  2. Step 2: Convert to fraction form
    1,857,705.40/2,786,558.10 = 1,101,878.20/x
  3. Step 3: Cross multiply
    1,857,705.40x = 2,786,558.10 × 1,101,878.20
  4. Step 4: Simplify right side
    1,857,705.40x = 3,070,447,623,423.42
  5. Step 5: Solve for x
    x = 3,070,447,623,423.42/1,857,705.40
  6. Step 6: Final answer
    x = 1,652,817.30

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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.