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Finding the Fourth Proportional to 1,033.68, 1,550.88 and 384.78

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Solution

The fourth proportional to 1,033.68, 1,550.88 and 384.78 is: 577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.68 : 1,550.88 = 384.78 : x
  2. Step 2: Convert to fraction form
    1,033.68/1,550.88 = 384.78/x
  3. Step 3: Cross multiply
    1,033.68x = 1,550.88 × 384.78
  4. Step 4: Simplify right side
    1,033.68x = 596,747.61
  5. Step 5: Solve for x
    x = 596,747.61/1,033.68
  6. Step 6: Final answer
    x = 577.30

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1.5x scale

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.