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Finding the Fourth Proportional to 1,045.84, 1,443.08 and 603.76

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Solution

The fourth proportional to 1,045.84, 1,443.08 and 603.76 is: 833.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.84 : 1,443.08 = 603.76 : x
  2. Step 2: Convert to fraction form
    1,045.84/1,443.08 = 603.76/x
  3. Step 3: Cross multiply
    1,045.84x = 1,443.08 × 603.76
  4. Step 4: Simplify right side
    1,045.84x = 871,273.98
  5. Step 5: Solve for x
    x = 871,273.98/1,045.84
  6. Step 6: Final answer
    x = 833.09

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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.