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Finding the Fourth Proportional to 530.87, 732.75 and 480.77

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Solution

The fourth proportional to 530.87, 732.75 and 480.77 is: 663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.87 : 732.75 = 480.77 : x
  2. Step 2: Convert to fraction form
    530.87/732.75 = 480.77/x
  3. Step 3: Cross multiply
    530.87x = 732.75 × 480.77
  4. Step 4: Simplify right side
    530.87x = 352,284.22
  5. Step 5: Solve for x
    x = 352,284.22/530.87
  6. Step 6: Final answer
    x = 663.60

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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.