Home / 961,539.60-1,440,559.80-783,080.40

Finding the Fourth Proportional to 961,539.60, 1,440,559.80 and 783,080.40

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Solution

The fourth proportional to 961,539.60, 1,440,559.80 and 783,080.40 is: 1,173,195.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,539.60 : 1,440,559.80 = 783,080.40 : x
  2. Step 2: Convert to fraction form
    961,539.60/1,440,559.80 = 783,080.40/x
  3. Step 3: Cross multiply
    961,539.60x = 1,440,559.80 × 783,080.40
  4. Step 4: Simplify right side
    961,539.60x = 1,128,074,144,407.92
  5. Step 5: Solve for x
    x = 1,128,074,144,407.92/961,539.60
  6. Step 6: Final answer
    x = 1,173,195.72

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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.