Home / 1,444.48-2,167.80-520.05

Finding the Fourth Proportional to 1,444.48, 2,167.80 and 520.05

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Solution

The fourth proportional to 1,444.48, 2,167.80 and 520.05 is: 780.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.48 : 2,167.80 = 520.05 : x
  2. Step 2: Convert to fraction form
    1,444.48/2,167.80 = 520.05/x
  3. Step 3: Cross multiply
    1,444.48x = 2,167.80 × 520.05
  4. Step 4: Simplify right side
    1,444.48x = 1,127,364.39
  5. Step 5: Solve for x
    x = 1,127,364.39/1,444.48
  6. Step 6: Final answer
    x = 780.46

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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.