Home / 1,207,459.40-1,811,189.10-853,165.40

Finding the Fourth Proportional to 1,207,459.40, 1,811,189.10 and 853,165.40

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Solution

The fourth proportional to 1,207,459.40, 1,811,189.10 and 853,165.40 is: 1,279,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,459.40 : 1,811,189.10 = 853,165.40 : x
  2. Step 2: Convert to fraction form
    1,207,459.40/1,811,189.10 = 853,165.40/x
  3. Step 3: Cross multiply
    1,207,459.40x = 1,811,189.10 × 853,165.40
  4. Step 4: Simplify right side
    1,207,459.40x = 1,545,243,872,977.14
  5. Step 5: Solve for x
    x = 1,545,243,872,977.14/1,207,459.40
  6. Step 6: Final answer
    x = 1,279,748.10

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Double scale
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Similar ratio
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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.