Home / 928,871.40-1,389,620.70-805,581.80

Finding the Fourth Proportional to 928,871.40, 1,389,620.70 and 805,581.80

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Solution

The fourth proportional to 928,871.40, 1,389,620.70 and 805,581.80 is: 1,205,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,871.40 : 1,389,620.70 = 805,581.80 : x
  2. Step 2: Convert to fraction form
    928,871.40/1,389,620.70 = 805,581.80/x
  3. Step 3: Cross multiply
    928,871.40x = 1,389,620.70 × 805,581.80
  4. Step 4: Simplify right side
    928,871.40x = 1,119,453,144,823.26
  5. Step 5: Solve for x
    x = 1,119,453,144,823.26/928,871.40
  6. Step 6: Final answer
    x = 1,205,175.60

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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.