Home / 1,209,969.60-1,814,954.40-786,955.20

Finding the Fourth Proportional to 1,209,969.60, 1,814,954.40 and 786,955.20

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Solution

The fourth proportional to 1,209,969.60, 1,814,954.40 and 786,955.20 is: 1,180,432.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,969.60 : 1,814,954.40 = 786,955.20 : x
  2. Step 2: Convert to fraction form
    1,209,969.60/1,814,954.40 = 786,955.20/x
  3. Step 3: Cross multiply
    1,209,969.60x = 1,814,954.40 × 786,955.20
  4. Step 4: Simplify right side
    1,209,969.60x = 1,428,287,802,842.88
  5. Step 5: Solve for x
    x = 1,428,287,802,842.88/1,209,969.60
  6. Step 6: Final answer
    x = 1,180,432.80

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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.