Home / 390,941.26-539,556.96-247,714.72

Finding the Fourth Proportional to 390,941.26, 539,556.96 and 247,714.72

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Solution

The fourth proportional to 390,941.26, 539,556.96 and 247,714.72 is: 341,883.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,941.26 : 539,556.96 = 247,714.72 : x
  2. Step 2: Convert to fraction form
    390,941.26/539,556.96 = 247,714.72/x
  3. Step 3: Cross multiply
    390,941.26x = 539,556.96 × 247,714.72
  4. Step 4: Simplify right side
    390,941.26x = 133,656,201,270.45
  5. Step 5: Solve for x
    x = 133,656,201,270.45/390,941.26
  6. Step 6: Final answer
    x = 341,883.08

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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.