Home / 928,877.40-1,389,629.70-805,587.80

Finding the Fourth Proportional to 928,877.40, 1,389,629.70 and 805,587.80

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Solution

The fourth proportional to 928,877.40, 1,389,629.70 and 805,587.80 is: 1,205,184.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,877.40 : 1,389,629.70 = 805,587.80 : x
  2. Step 2: Convert to fraction form
    928,877.40/1,389,629.70 = 805,587.80/x
  3. Step 3: Cross multiply
    928,877.40x = 1,389,629.70 × 805,587.80
  4. Step 4: Simplify right side
    928,877.40x = 1,119,468,732,837.66
  5. Step 5: Solve for x
    x = 1,119,468,732,837.66/928,877.40
  6. Step 6: Final answer
    x = 1,205,184.59

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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.