Home / 989,455.77-1,484,245.21-358,375.05

Finding the Fourth Proportional to 989,455.77, 1,484,245.21 and 358,375.05

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Solution

The fourth proportional to 989,455.77, 1,484,245.21 and 358,375.05 is: 537,584.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,455.77 : 1,484,245.21 = 358,375.05 : x
  2. Step 2: Convert to fraction form
    989,455.77/1,484,245.21 = 358,375.05/x
  3. Step 3: Cross multiply
    989,455.77x = 1,484,245.21 × 358,375.05
  4. Step 4: Simplify right side
    989,455.77x = 531,916,451,346.01
  5. Step 5: Solve for x
    x = 531,916,451,346.01/989,455.77
  6. Step 6: Final answer
    x = 537,584.87

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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.