Home / 1,118,880.57-1,678,308.51-669,726.82

Finding the Fourth Proportional to 1,118,880.57, 1,678,308.51 and 669,726.82

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Solution

The fourth proportional to 1,118,880.57, 1,678,308.51 and 669,726.82 is: 1,004,582.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,880.57 : 1,678,308.51 = 669,726.82 : x
  2. Step 2: Convert to fraction form
    1,118,880.57/1,678,308.51 = 669,726.82/x
  3. Step 3: Cross multiply
    1,118,880.57x = 1,678,308.51 × 669,726.82
  4. Step 4: Simplify right side
    1,118,880.57x = 1,124,008,212,782.90
  5. Step 5: Solve for x
    x = 1,124,008,212,782.90/1,118,880.57
  6. Step 6: Final answer
    x = 1,004,582.83

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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.