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Finding the Fourth Proportional to 1,038.02, 1,554.36 and 549.98

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Solution

The fourth proportional to 1,038.02, 1,554.36 and 549.98 is: 823.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038.02 : 1,554.36 = 549.98 : x
  2. Step 2: Convert to fraction form
    1,038.02/1,554.36 = 549.98/x
  3. Step 3: Cross multiply
    1,038.02x = 1,554.36 × 549.98
  4. Step 4: Simplify right side
    1,038.02x = 854,866.91
  5. Step 5: Solve for x
    x = 854,866.91/1,038.02
  6. Step 6: Final answer
    x = 823.56

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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.