Home / 475,128.79-655,679.61-260,270.35

Finding the Fourth Proportional to 475,128.79, 655,679.61 and 260,270.35

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Solution

The fourth proportional to 475,128.79, 655,679.61 and 260,270.35 is: 359,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,128.79 : 655,679.61 = 260,270.35 : x
  2. Step 2: Convert to fraction form
    475,128.79/655,679.61 = 260,270.35/x
  3. Step 3: Cross multiply
    475,128.79x = 655,679.61 × 260,270.35
  4. Step 4: Simplify right side
    475,128.79x = 170,653,961,582.56
  5. Step 5: Solve for x
    x = 170,653,961,582.56/475,128.79
  6. Step 6: Final answer
    x = 359,174.11

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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.