Home / 989,541.16-1,484,408.94-279,574.72

Finding the Fourth Proportional to 989,541.16, 1,484,408.94 and 279,574.72

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Solution

The fourth proportional to 989,541.16, 1,484,408.94 and 279,574.72 is: 419,389.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,541.16 : 1,484,408.94 = 279,574.72 : x
  2. Step 2: Convert to fraction form
    989,541.16/1,484,408.94 = 279,574.72/x
  3. Step 3: Cross multiply
    989,541.16x = 1,484,408.94 × 279,574.72
  4. Step 4: Simplify right side
    989,541.16x = 415,003,213,766.00
  5. Step 5: Solve for x
    x = 415,003,213,766.00/989,541.16
  6. Step 6: Final answer
    x = 419,389.54

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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.