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Finding the Fourth Proportional to 749.04, 1,033.62 and 434.31

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Solution

The fourth proportional to 749.04, 1,033.62 and 434.31 is: 599.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    749.04 : 1,033.62 = 434.31 : x
  2. Step 2: Convert to fraction form
    749.04/1,033.62 = 434.31/x
  3. Step 3: Cross multiply
    749.04x = 1,033.62 × 434.31
  4. Step 4: Simplify right side
    749.04x = 448,911.50
  5. Step 5: Solve for x
    x = 448,911.50/749.04
  6. Step 6: Final answer
    x = 599.32

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1.5x scale

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.