Home / 1,372,780.40-2,059,559.40-426,246.80

Finding the Fourth Proportional to 1,372,780.40, 2,059,559.40 and 426,246.80

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Solution

The fourth proportional to 1,372,780.40, 2,059,559.40 and 426,246.80 is: 639,490.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,780.40 : 2,059,559.40 = 426,246.80 : x
  2. Step 2: Convert to fraction form
    1,372,780.40/2,059,559.40 = 426,246.80/x
  3. Step 3: Cross multiply
    1,372,780.40x = 2,059,559.40 × 426,246.80
  4. Step 4: Simplify right side
    1,372,780.40x = 877,880,603,659.92
  5. Step 5: Solve for x
    x = 877,880,603,659.92/1,372,780.40
  6. Step 6: Final answer
    x = 639,490.92

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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.