Home / 1,211,881.20-1,816,655.40-941,859.60

Finding the Fourth Proportional to 1,211,881.20, 1,816,655.40 and 941,859.60

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Solution

The fourth proportional to 1,211,881.20, 1,816,655.40 and 941,859.60 is: 1,411,882.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,881.20 : 1,816,655.40 = 941,859.60 : x
  2. Step 2: Convert to fraction form
    1,211,881.20/1,816,655.40 = 941,859.60/x
  3. Step 3: Cross multiply
    1,211,881.20x = 1,816,655.40 × 941,859.60
  4. Step 4: Simplify right side
    1,211,881.20x = 1,711,034,328,381.84
  5. Step 5: Solve for x
    x = 1,711,034,328,381.84/1,211,881.20
  6. Step 6: Final answer
    x = 1,411,882.89

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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.