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Finding the Fourth Proportional to 702,427.89, 969,350.58 and 380,138.07

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Solution

The fourth proportional to 702,427.89, 969,350.58 and 380,138.07 is: 524,590.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,427.89 : 969,350.58 = 380,138.07 : x
  2. Step 2: Convert to fraction form
    702,427.89/969,350.58 = 380,138.07/x
  3. Step 3: Cross multiply
    702,427.89x = 969,350.58 × 380,138.07
  4. Step 4: Simplify right side
    702,427.89x = 368,487,058,634.58
  5. Step 5: Solve for x
    x = 368,487,058,634.58/702,427.89
  6. Step 6: Final answer
    x = 524,590.59

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1.5x scale

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.