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Finding the Fourth Proportional to 437,569.80, 655,370.55 and 260,422.80

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Solution

The fourth proportional to 437,569.80, 655,370.55 and 260,422.80 is: 390,048.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,569.80 : 655,370.55 = 260,422.80 : x
  2. Step 2: Convert to fraction form
    437,569.80/655,370.55 = 260,422.80/x
  3. Step 3: Cross multiply
    437,569.80x = 655,370.55 × 260,422.80
  4. Step 4: Simplify right side
    437,569.80x = 170,673,433,668.54
  5. Step 5: Solve for x
    x = 170,673,433,668.54/437,569.80
  6. Step 6: Final answer
    x = 390,048.48

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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.