Home / 620,720.82-931,084.20-188,442

Finding the Fourth Proportional to 620,720.82, 931,084.20 and 188,442

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Solution

The fourth proportional to 620,720.82, 931,084.20 and 188,442 is: 282,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,720.82 : 931,084.20 = 188,442 : x
  2. Step 2: Convert to fraction form
    620,720.82/931,084.20 = 188,442/x
  3. Step 3: Cross multiply
    620,720.82x = 931,084.20 × 188,442
  4. Step 4: Simplify right side
    620,720.82x = 175,455,368,816.40
  5. Step 5: Solve for x
    x = 175,455,368,816.40/620,720.82
  6. Step 6: Final answer
    x = 282,663.90

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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.