Home / 989,826.40-1,484,593.80-279,926.20

Finding the Fourth Proportional to 989,826.40, 1,484,593.80 and 279,926.20

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Solution

The fourth proportional to 989,826.40, 1,484,593.80 and 279,926.20 is: 419,848.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,826.40 : 1,484,593.80 = 279,926.20 : x
  2. Step 2: Convert to fraction form
    989,826.40/1,484,593.80 = 279,926.20/x
  3. Step 3: Cross multiply
    989,826.40x = 1,484,593.80 × 279,926.20
  4. Step 4: Simplify right side
    989,826.40x = 415,576,700,977.56
  5. Step 5: Solve for x
    x = 415,576,700,977.56/989,826.40
  6. Step 6: Final answer
    x = 419,848.07

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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.