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Finding the Fourth Proportional to 477,405.74, 658,806.78 and 262,545.78

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Solution

The fourth proportional to 477,405.74, 658,806.78 and 262,545.78 is: 362,305.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,405.74 : 658,806.78 = 262,545.78 : x
  2. Step 2: Convert to fraction form
    477,405.74/658,806.78 = 262,545.78/x
  3. Step 3: Cross multiply
    477,405.74x = 658,806.78 × 262,545.78
  4. Step 4: Simplify right side
    477,405.74x = 172,966,939,924.39
  5. Step 5: Solve for x
    x = 172,966,939,924.39/477,405.74
  6. Step 6: Final answer
    x = 362,305.95

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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.