Home / 1,257,780.92-1,886,406.76-404,928.80

Finding the Fourth Proportional to 1,257,780.92, 1,886,406.76 and 404,928.80

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Solution

The fourth proportional to 1,257,780.92, 1,886,406.76 and 404,928.80 is: 607,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,780.92 : 1,886,406.76 = 404,928.80 : x
  2. Step 2: Convert to fraction form
    1,257,780.92/1,886,406.76 = 404,928.80/x
  3. Step 3: Cross multiply
    1,257,780.92x = 1,886,406.76 × 404,928.80
  4. Step 4: Simplify right side
    1,257,780.92x = 763,860,425,638.69
  5. Step 5: Solve for x
    x = 763,860,425,638.69/1,257,780.92
  6. Step 6: Final answer
    x = 607,308.01

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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.