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Finding the Fourth Proportional to 702,152.79, 968,965.38 and 379,861.89

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Solution

The fourth proportional to 702,152.79, 968,965.38 and 379,861.89 is: 524,206.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,152.79 : 968,965.38 = 379,861.89 : x
  2. Step 2: Convert to fraction form
    702,152.79/968,965.38 = 379,861.89/x
  3. Step 3: Cross multiply
    702,152.79x = 968,965.38 × 379,861.89
  4. Step 4: Simplify right side
    702,152.79x = 368,073,020,591.37
  5. Step 5: Solve for x
    x = 368,073,020,591.37/702,152.79
  6. Step 6: Final answer
    x = 524,206.45

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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.