Home / 1,678,263.85-2,516,292.87-813,469.89

Finding the Fourth Proportional to 1,678,263.85, 2,516,292.87 and 813,469.89

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Solution

The fourth proportional to 1,678,263.85, 2,516,292.87 and 813,469.89 is: 1,219,670.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,263.85 : 2,516,292.87 = 813,469.89 : x
  2. Step 2: Convert to fraction form
    1,678,263.85/2,516,292.87 = 813,469.89/x
  3. Step 3: Cross multiply
    1,678,263.85x = 2,516,292.87 × 813,469.89
  4. Step 4: Simplify right side
    1,678,263.85x = 2,046,928,484,166.68
  5. Step 5: Solve for x
    x = 2,046,928,484,166.68/1,678,263.85
  6. Step 6: Final answer
    x = 1,219,670.25

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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.