Home / 638,829.13-958,375.95-259,749.91

Finding the Fourth Proportional to 638,829.13, 958,375.95 and 259,749.91

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Solution

The fourth proportional to 638,829.13, 958,375.95 and 259,749.91 is: 389,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,829.13 : 958,375.95 = 259,749.91 : x
  2. Step 2: Convert to fraction form
    638,829.13/958,375.95 = 259,749.91/x
  3. Step 3: Cross multiply
    638,829.13x = 958,375.95 × 259,749.91
  4. Step 4: Simplify right side
    638,829.13x = 248,938,066,758.67
  5. Step 5: Solve for x
    x = 248,938,066,758.67/638,829.13
  6. Step 6: Final answer
    x = 389,678.64

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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.