Home / 1,314,144.20-1,971,459.66-415,812.08

Finding the Fourth Proportional to 1,314,144.20, 1,971,459.66 and 415,812.08

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Solution

The fourth proportional to 1,314,144.20, 1,971,459.66 and 415,812.08 is: 623,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,144.20 : 1,971,459.66 = 415,812.08 : x
  2. Step 2: Convert to fraction form
    1,314,144.20/1,971,459.66 = 415,812.08/x
  3. Step 3: Cross multiply
    1,314,144.20x = 1,971,459.66 × 415,812.08
  4. Step 4: Simplify right side
    1,314,144.20x = 819,756,741,860.69
  5. Step 5: Solve for x
    x = 819,756,741,860.69/1,314,144.20
  6. Step 6: Final answer
    x = 623,795.12

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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.