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Finding the Fourth Proportional to 670,492.07, 925,279.07 and 368,686.07

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Solution

The fourth proportional to 670,492.07, 925,279.07 and 368,686.07 is: 508,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,492.07 : 925,279.07 = 368,686.07 : x
  2. Step 2: Convert to fraction form
    670,492.07/925,279.07 = 368,686.07/x
  3. Step 3: Cross multiply
    670,492.07x = 925,279.07 × 368,686.07
  4. Step 4: Simplify right side
    670,492.07x = 341,137,503,971.56
  5. Step 5: Solve for x
    x = 341,137,503,971.56/670,492.07
  6. Step 6: Final answer
    x = 508,786.78

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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.