Home / 926,087.60-1,389,131.40-811,809.20

Finding the Fourth Proportional to 926,087.60, 1,389,131.40 and 811,809.20

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Solution

The fourth proportional to 926,087.60, 1,389,131.40 and 811,809.20 is: 1,217,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,087.60 : 1,389,131.40 = 811,809.20 : x
  2. Step 2: Convert to fraction form
    926,087.60/1,389,131.40 = 811,809.20/x
  3. Step 3: Cross multiply
    926,087.60x = 1,389,131.40 × 811,809.20
  4. Step 4: Simplify right side
    926,087.60x = 1,127,709,650,528.88
  5. Step 5: Solve for x
    x = 1,127,709,650,528.88/926,087.60
  6. Step 6: Final answer
    x = 1,217,713.80

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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.