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Finding the Fourth Proportional to 1,070.04, 1,604.12 and 376.28

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Solution

The fourth proportional to 1,070.04, 1,604.12 and 376.28 is: 564.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070.04 : 1,604.12 = 376.28 : x
  2. Step 2: Convert to fraction form
    1,070.04/1,604.12 = 376.28/x
  3. Step 3: Cross multiply
    1,070.04x = 1,604.12 × 376.28
  4. Step 4: Simplify right side
    1,070.04x = 603,588.37
  5. Step 5: Solve for x
    x = 603,588.37/1,070.04
  6. Step 6: Final answer
    x = 564.08

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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.