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Finding the Fourth Proportional to 1,503.60, 2,255.32 and 477.52

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Solution

The fourth proportional to 1,503.60, 2,255.32 and 477.52 is: 716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.60 : 2,255.32 = 477.52 : x
  2. Step 2: Convert to fraction form
    1,503.60/2,255.32 = 477.52/x
  3. Step 3: Cross multiply
    1,503.60x = 2,255.32 × 477.52
  4. Step 4: Simplify right side
    1,503.60x = 1,076,960.41
  5. Step 5: Solve for x
    x = 1,076,960.41/1,503.60
  6. Step 6: Final answer
    x = 716.25

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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.