Home / 1,319,855.60-1,821,401.90-716,243.60

Finding the Fourth Proportional to 1,319,855.60, 1,821,401.90 and 716,243.60

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Solution

The fourth proportional to 1,319,855.60, 1,821,401.90 and 716,243.60 is: 988,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,855.60 : 1,821,401.90 = 716,243.60 : x
  2. Step 2: Convert to fraction form
    1,319,855.60/1,821,401.90 = 716,243.60/x
  3. Step 3: Cross multiply
    1,319,855.60x = 1,821,401.90 × 716,243.60
  4. Step 4: Simplify right side
    1,319,855.60x = 1,304,567,441,214.61
  5. Step 5: Solve for x
    x = 1,304,567,441,214.61/1,319,855.60
  6. Step 6: Final answer
    x = 988,416.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.