Home / 1,185,143.67-1,635,519.33-669,000.74

Finding the Fourth Proportional to 1,185,143.67, 1,635,519.33 and 669,000.74

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Solution

The fourth proportional to 1,185,143.67, 1,635,519.33 and 669,000.74 is: 923,232.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,143.67 : 1,635,519.33 = 669,000.74 : x
  2. Step 2: Convert to fraction form
    1,185,143.67/1,635,519.33 = 669,000.74/x
  3. Step 3: Cross multiply
    1,185,143.67x = 1,635,519.33 × 669,000.74
  4. Step 4: Simplify right side
    1,185,143.67x = 1,094,163,633,876.71
  5. Step 5: Solve for x
    x = 1,094,163,633,876.71/1,185,143.67
  6. Step 6: Final answer
    x = 923,232.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.