Home / 1,017.14-1,403.55-624.08

Finding the Fourth Proportional to 1,017.14, 1,403.55 and 624.08

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Solution

The fourth proportional to 1,017.14, 1,403.55 and 624.08 is: 861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.14 : 1,403.55 = 624.08 : x
  2. Step 2: Convert to fraction form
    1,017.14/1,403.55 = 624.08/x
  3. Step 3: Cross multiply
    1,017.14x = 1,403.55 × 624.08
  4. Step 4: Simplify right side
    1,017.14x = 875,930.99
  5. Step 5: Solve for x
    x = 875,930.99/1,017.14
  6. Step 6: Final answer
    x = 861.17

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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.