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Finding the Fourth Proportional to 1,482.11, 2,223.40 and 507.98

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Solution

The fourth proportional to 1,482.11, 2,223.40 and 507.98 is: 762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.11 : 2,223.40 = 507.98 : x
  2. Step 2: Convert to fraction form
    1,482.11/2,223.40 = 507.98/x
  3. Step 3: Cross multiply
    1,482.11x = 2,223.40 × 507.98
  4. Step 4: Simplify right side
    1,482.11x = 1,129,447.02
  5. Step 5: Solve for x
    x = 1,129,447.02/1,482.11
  6. Step 6: Final answer
    x = 762.05

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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.