Home / 2,117,901.60-3,178,156.26-838,291.23

Finding the Fourth Proportional to 2,117,901.60, 3,178,156.26 and 838,291.23

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Solution

The fourth proportional to 2,117,901.60, 3,178,156.26 and 838,291.23 is: 1,257,952.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,901.60 : 3,178,156.26 = 838,291.23 : x
  2. Step 2: Convert to fraction form
    2,117,901.60/3,178,156.26 = 838,291.23/x
  3. Step 3: Cross multiply
    2,117,901.60x = 3,178,156.26 × 838,291.23
  4. Step 4: Simplify right side
    2,117,901.60x = 2,664,220,520,327.60
  5. Step 5: Solve for x
    x = 2,664,220,520,327.60/2,117,901.60
  6. Step 6: Final answer
    x = 1,257,952.93

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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.