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Finding the Fourth Proportional to 702,414.42, 969,328.31 and 380,124.59

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Solution

The fourth proportional to 702,414.42, 969,328.31 and 380,124.59 is: 524,569.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,414.42 : 969,328.31 = 380,124.59 : x
  2. Step 2: Convert to fraction form
    702,414.42/969,328.31 = 380,124.59/x
  3. Step 3: Cross multiply
    702,414.42x = 969,328.31 × 380,124.59
  4. Step 4: Simplify right side
    702,414.42x = 368,465,519,666.88
  5. Step 5: Solve for x
    x = 368,465,519,666.88/702,414.42
  6. Step 6: Final answer
    x = 524,569.98

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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.