Home / 658,436.07-908,715.54-371,974.61

Finding the Fourth Proportional to 658,436.07, 908,715.54 and 371,974.61

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Solution

The fourth proportional to 658,436.07, 908,715.54 and 371,974.61 is: 513,366.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,436.07 : 908,715.54 = 371,974.61 : x
  2. Step 2: Convert to fraction form
    658,436.07/908,715.54 = 371,974.61/x
  3. Step 3: Cross multiply
    658,436.07x = 908,715.54 × 371,974.61
  4. Step 4: Simplify right side
    658,436.07x = 338,019,104,048.86
  5. Step 5: Solve for x
    x = 338,019,104,048.86/658,436.07
  6. Step 6: Final answer
    x = 513,366.63

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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.