Home / 1,223,809.80-1,836,370.80-513,909.60

Finding the Fourth Proportional to 1,223,809.80, 1,836,370.80 and 513,909.60

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Solution

The fourth proportional to 1,223,809.80, 1,836,370.80 and 513,909.60 is: 771,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,809.80 : 1,836,370.80 = 513,909.60 : x
  2. Step 2: Convert to fraction form
    1,223,809.80/1,836,370.80 = 513,909.60/x
  3. Step 3: Cross multiply
    1,223,809.80x = 1,836,370.80 × 513,909.60
  4. Step 4: Simplify right side
    1,223,809.80x = 943,728,583,279.68
  5. Step 5: Solve for x
    x = 943,728,583,279.68/1,223,809.80
  6. Step 6: Final answer
    x = 771,139.91

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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.