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Finding the Fourth Proportional to 670,485.94, 925,270.61 and 368,679.94

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Solution

The fourth proportional to 670,485.94, 925,270.61 and 368,679.94 is: 508,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,485.94 : 925,270.61 = 368,679.94 : x
  2. Step 2: Convert to fraction form
    670,485.94/925,270.61 = 368,679.94/x
  3. Step 3: Cross multiply
    670,485.94x = 925,270.61 × 368,679.94
  4. Step 4: Simplify right side
    670,485.94x = 341,128,708,821.99
  5. Step 5: Solve for x
    x = 341,128,708,821.99/670,485.94
  6. Step 6: Final answer
    x = 508,778.32

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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.