Home / 427,475.56-641,360.70-190,981.48

Finding the Fourth Proportional to 427,475.56, 641,360.70 and 190,981.48

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Solution

The fourth proportional to 427,475.56, 641,360.70 and 190,981.48 is: 286,538.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,475.56 : 641,360.70 = 190,981.48 : x
  2. Step 2: Convert to fraction form
    427,475.56/641,360.70 = 190,981.48/x
  3. Step 3: Cross multiply
    427,475.56x = 641,360.70 × 190,981.48
  4. Step 4: Simplify right side
    427,475.56x = 122,488,015,699.84
  5. Step 5: Solve for x
    x = 122,488,015,699.84/427,475.56
  6. Step 6: Final answer
    x = 286,538.06

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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.