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Finding the Fourth Proportional to 424,846.86, 637,208.79 and 125,312.64

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Solution

The fourth proportional to 424,846.86, 637,208.79 and 125,312.64 is: 187,950.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,846.86 : 637,208.79 = 125,312.64 : x
  2. Step 2: Convert to fraction form
    424,846.86/637,208.79 = 125,312.64/x
  3. Step 3: Cross multiply
    424,846.86x = 637,208.79 × 125,312.64
  4. Step 4: Simplify right side
    424,846.86x = 79,850,315,706.11
  5. Step 5: Solve for x
    x = 79,850,315,706.11/424,846.86
  6. Step 6: Final answer
    x = 187,950.82

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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.