Home / 1,289,798.88-1,934,907.12-391,029.60

Finding the Fourth Proportional to 1,289,798.88, 1,934,907.12 and 391,029.60

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Solution

The fourth proportional to 1,289,798.88, 1,934,907.12 and 391,029.60 is: 586,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,798.88 : 1,934,907.12 = 391,029.60 : x
  2. Step 2: Convert to fraction form
    1,289,798.88/1,934,907.12 = 391,029.60/x
  3. Step 3: Cross multiply
    1,289,798.88x = 1,934,907.12 × 391,029.60
  4. Step 4: Simplify right side
    1,289,798.88x = 756,605,957,170.75
  5. Step 5: Solve for x
    x = 756,605,957,170.75/1,289,798.88
  6. Step 6: Final answer
    x = 586,607.70

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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.