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Finding the Fourth Proportional to 702,443.89, 969,372.51 and 380,154.07

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Solution

The fourth proportional to 702,443.89, 969,372.51 and 380,154.07 is: 524,612.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,443.89 : 969,372.51 = 380,154.07 : x
  2. Step 2: Convert to fraction form
    702,443.89/969,372.51 = 380,154.07/x
  3. Step 3: Cross multiply
    702,443.89x = 969,372.51 × 380,154.07
  4. Step 4: Simplify right side
    702,443.89x = 368,510,905,022.62
  5. Step 5: Solve for x
    x = 368,510,905,022.62/702,443.89
  6. Step 6: Final answer
    x = 524,612.59

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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.