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Finding the Fourth Proportional to 437,569.72, 655,479.09 and 347,763.98

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Solution

The fourth proportional to 437,569.72, 655,479.09 and 347,763.98 is: 520,950.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,569.72 : 655,479.09 = 347,763.98 : x
  2. Step 2: Convert to fraction form
    437,569.72/655,479.09 = 347,763.98/x
  3. Step 3: Cross multiply
    437,569.72x = 655,479.09 × 347,763.98
  4. Step 4: Simplify right side
    437,569.72x = 227,952,017,145.18
  5. Step 5: Solve for x
    x = 227,952,017,145.18/437,569.72
  6. Step 6: Final answer
    x = 520,950.16

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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.